docs(images): reduce png sizes (#983)

* reduce png sizes

* chore: update some deps (#984)

* chore(deps): bump svelte-i18n from 3.1.0 to 3.2.5 in /site (#973)

Bumps [svelte-i18n](https://github.com/kaisermann/svelte-i18n) from 3.1.0 to 3.2.5.
- [Release notes](https://github.com/kaisermann/svelte-i18n/releases)
- [Changelog](https://github.com/kaisermann/svelte-i18n/blob/main/CHANGELOG.md)
- [Commits](https://github.com/kaisermann/svelte-i18n/compare/v3.1.0...v3.2.5)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* chore(deps-dev): bump svelte from 3.29.4 to 3.29.7 in /site (#972)

Bumps [svelte](https://github.com/sveltejs/svelte) from 3.29.4 to 3.29.7.
- [Release notes](https://github.com/sveltejs/svelte/releases)
- [Changelog](https://github.com/sveltejs/svelte/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/svelte/compare/v3.29.4...v3.29.7)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* chore(deps-dev): bump rollup from 2.33.1 to 2.33.2 in /site (#971)

Bumps [rollup](https://github.com/rollup/rollup) from 2.33.1 to 2.33.2.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.33.1...v2.33.2)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* chore(deps): bump marked from 1.2.2 to 1.2.4 in /site (#970)

Bumps [marked](https://github.com/markedjs/marked) from 1.2.2 to 1.2.4.
- [Release notes](https://github.com/markedjs/marked/releases)
- [Changelog](https://github.com/markedjs/marked/blob/master/release.config.js)
- [Commits](https://github.com/markedjs/marked/compare/v1.2.2...v1.2.4)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* chore(deps): bump sirv from 0.4.6 to 1.0.7 in /site (#969)

Bumps [sirv](https://github.com/lukeed/sirv) from 0.4.6 to 1.0.7.
- [Release notes](https://github.com/lukeed/sirv/releases)
- [Commits](https://github.com/lukeed/sirv/compare/v0.4.6...v1.0.7)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* chore(deps-dev): bump rollup-plugin-svelte from 6.1.0 to 6.1.1 in /site (#968)

Bumps [rollup-plugin-svelte](https://github.com/sveltejs/rollup-plugin-svelte) from 6.1.0 to 6.1.1.
- [Release notes](https://github.com/sveltejs/rollup-plugin-svelte/releases)
- [Changelog](https://github.com/sveltejs/rollup-plugin-svelte/blob/v6.1.1/CHANGELOG.md)
- [Commits](https://github.com/sveltejs/rollup-plugin-svelte/compare/v6.1.0...v6.1.1)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

site/package-lock.json

@@ -1060,19 +1060,14 @@
 				"to-fast-properties": "^2.0.0"
 			}
 		},
-		"@formatjs/intl-unified-numberformat": {
-			"version": "3.3.7",
-			"resolved": "https://registry.npmjs.org/@formatjs/intl-unified-numberformat/-/intl-unified-numberformat-3.3.7.tgz",
-			"integrity": "sha512-KnWgLRHzCAgT9eyt3OS34RHoyD7dPDYhRcuKn+/6Kv2knDF8Im43J6vlSW6Hm1w63fNq3ZIT1cFk7RuVO3Psag==",
+		"@formatjs/ecma402-abstract": {
+			"version": "1.4.0",
+			"resolved": "https://registry.npmjs.org/@formatjs/ecma402-abstract/-/ecma402-abstract-1.4.0.tgz",
+			"integrity": "sha512-Mv027hcLFjE45K8UJ8PjRpdDGfR0aManEFj1KzoN8zXNveHGEygpZGfFf/FTTMl+QEVSrPAUlyxaCApvmv47AQ==",
 			"requires": {
-				"@formatjs/intl-utils": "^2.3.0"
+				"tslib": "^2.0.1"
 			}
 		},
-		"@formatjs/intl-utils": {
-			"version": "2.3.0",
-			"resolved": "https://registry.npmjs.org/@formatjs/intl-utils/-/intl-utils-2.3.0.tgz",
-			"integrity": "sha512-KWk80UPIzPmUg+P0rKh6TqspRw0G6eux1PuJr+zz47ftMaZ9QDwbGzHZbtzWkl5hgayM/qrKRutllRC7D/vVXQ=="
-		},
 		"@polka/send": {
 			"version": "0.4.0",
 			"resolved": "https://registry.npmjs.org/@polka/send/-/send-0.4.0.tgz",
@@ -1374,11 +1369,6 @@
 			"integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
 			"dev": true
 		},
-		"commander": {
-			"version": "4.1.1",
-			"resolved": "https://registry.npmjs.org/commander/-/commander-4.1.1.tgz",
-			"integrity": "sha512-NOKm8xhkzAjzFx8B2v5OAHT+u5pRQc2UCa2Vq9jYL/31o2wi9mxBA7LIFs3sV5VSC49z6pEhfbMULvShKj26WA=="
-		},
 		"commondir": {
 			"version": "1.0.1",
 			"resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
@@ -1464,8 +1454,7 @@
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-			"integrity": "sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg==",
-			"dev": true
+			"integrity": "sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg=="
 		},
 		"define-properties": {
 			"version": "1.1.3",
@@ -1476,6 +1465,11 @@
 				"object-keys": "^1.0.12"
 			}
 		},
+		"dlv": {
+			"version": "1.1.3",
+			"resolved": "https://registry.npmjs.org/dlv/-/dlv-1.1.3.tgz",
+			"integrity": "sha512-+HlytyjlPKnIG8XuRG8WvmBP8xs8P71y+SKKS6ZXWoEgLuePxtDoUEiH7WkdePWrQ5JBpE6aoVqfZfJUQkjXwA=="
+		},
 		"electron-to-chromium": {
 			"version": "1.3.587",
 			"resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.587.tgz",
@@ -1533,9 +1527,9 @@
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 		},
 		"estree-walker": {
-			"version": "0.9.0",
-			"resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-0.9.0.tgz",
-			"integrity": "sha512-12U47o7XHUX329+x3FzNVjCx3SHEzMF0nkDv7r/HnBzX/xNTKxajBk6gyygaxrAFtLj39219oMfbtxv4KpaOiA=="
+			"version": "2.0.1",
+			"resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-2.0.1.tgz",
+			"integrity": "sha512-tF0hv+Yi2Ot1cwj9eYHtxC0jB9bmjacjQs6ZBTj82H8JwUywFuc+7E83NWfNMwHXZc11mjfFcVXPe9gEP4B8dg=="
 		},
 		"esutils": {
 			"version": "2.0.3",
@@ -1543,6 +1537,11 @@
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 			"dev": true
 		},
+		"fast-memoize": {
+			"version": "2.5.2",
+			"resolved": "https://registry.npmjs.org/fast-memoize/-/fast-memoize-2.5.2.tgz",
+			"integrity": "sha512-Ue0LwpDYErFbmNnZSF0UH6eImUwDmogUO1jyE+JbN2gsQz/jICm1Ve7t9QT0rNSsfJt+Hs4/S3GnsDVjL4HVrw=="
+		},
 		"fs.realpath": {
 			"version": "1.0.0",
 			"resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
@@ -1703,26 +1702,23 @@
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 			"dev": true
 		},
-		"intl-format-cache": {
-			"version": "4.3.1",
-			"resolved": "https://registry.npmjs.org/intl-format-cache/-/intl-format-cache-4.3.1.tgz",
-			"integrity": "sha512-OEUYNA7D06agqPOYhbTkl0T8HA3QKSuwWh1HiClEnpd9vw7N+3XsQt5iZ0GUEchp5CW1fQk/tary+NsbF3yQ1Q=="
-		},
 		"intl-messageformat": {
-			"version": "7.8.4",
-			"resolved": "https://registry.npmjs.org/intl-messageformat/-/intl-messageformat-7.8.4.tgz",
-			"integrity": "sha512-yS0cLESCKCYjseCOGXuV4pxJm/buTfyCJ1nzQjryHmSehlptbZbn9fnlk1I9peLopZGGbjj46yHHiTAEZ1qOTA==",
+			"version": "9.3.18",
+			"resolved": "https://registry.npmjs.org/intl-messageformat/-/intl-messageformat-9.3.18.tgz",
+			"integrity": "sha512-OKrLWppdxXtRdRCPjmRZ9Ru7UZkZJDlMl+1Vpb3sCLWK0mFpr129K+gIlIb5zrWoAH3NiYDzekBXPTRWCyHSIA==",
 			"requires": {
-				"intl-format-cache": "^4.2.21",
-				"intl-messageformat-parser": "^3.6.4"
+				"fast-memoize": "^2.5.2",
+				"intl-messageformat-parser": "6.0.16",
+				"tslib": "^2.0.1"
 			}
 		},
 		"intl-messageformat-parser": {
-			"version": "3.6.4",
-			"resolved": "https://registry.npmjs.org/intl-messageformat-parser/-/intl-messageformat-parser-3.6.4.tgz",
-			"integrity": "sha512-RgPGwue0mJtoX2Ax8EmMzJzttxjnva7gx0Q7mKJ4oALrTZvtmCeAw5Msz2PcjW4dtCh/h7vN/8GJCxZO1uv+OA==",
+			"version": "6.0.16",
+			"resolved": "https://registry.npmjs.org/intl-messageformat-parser/-/intl-messageformat-parser-6.0.16.tgz",
+			"integrity": "sha512-Qy3Zz0vF4fhMVuW4BDqUr55LsOl9enM03wuwbP4Yg7v29rYNpf7Z76Whstu6uDLDJokrjbpgDvRcjSDTAhxKJw==",
 			"requires": {
-				"@formatjs/intl-unified-numberformat": "^3.2.0"
+				"@formatjs/ecma402-abstract": "1.4.0",
+				"tslib": "^2.0.1"
 			}
 		},
 		"is-arrayish": {
@@ -1908,9 +1904,9 @@
 			}
 		},
 		"marked": {
-			"version": "1.2.2",
-			"resolved": "https://registry.npmjs.org/marked/-/marked-1.2.2.tgz",
-			"integrity": "sha512-5jjKHVl/FPo0Z6ocP3zYhKiJLzkwJAw4CZoLjv57FkvbUuwOX4LIBBGGcXjAY6ATcd1q9B8UTj5T9Umauj0QYQ=="
+			"version": "1.2.4",
+			"resolved": "https://registry.npmjs.org/marked/-/marked-1.2.4.tgz",
+			"integrity": "sha512-6x5TFGCTKSQBLTZtOburGxCxFEBJEGYVLwCMTBCxzvyuisGcC20UNzDSJhCr/cJ/Kmh6ulfJm10g6WWEAJ3kvg=="
 		},
 		"matchit": {
 			"version": "1.1.0",
@@ -1965,6 +1961,11 @@
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 			"dev": true
 		},
+		"mri": {
+			"version": "1.1.6",
+			"resolved": "https://registry.npmjs.org/mri/-/mri-1.1.6.tgz",
+			"integrity": "sha512-oi1b3MfbyGa7FJMP9GmLTttni5JoICpYBRlq+x5V16fZbLsnL9N3wFqqIm/nIG43FjUFkFh9Epzp/kzUGUnJxQ=="
+		},
 		"ms": {
 			"version": "2.0.0",
 			"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -2246,18 +2247,18 @@
 			}
 		},
 		"rollup": {
-			"version": "2.33.1",
-			"resolved": "https://registry.npmjs.org/rollup/-/rollup-2.33.1.tgz",
-			"integrity": "sha512-uY4O/IoL9oNW8MMcbA5hcOaz6tZTMIh7qJHx/tzIJm+n1wLoY38BLn6fuy7DhR57oNFLMbDQtDeJoFURt5933w==",
+			"version": "2.33.2",
+			"resolved": "https://registry.npmjs.org/rollup/-/rollup-2.33.2.tgz",
+			"integrity": "sha512-QPQ6/fWCrzHtSXkI269rhKaC7qXGghYBwXU04b1JsDZ6ibZa3DJ9D1SFAYRMgx1inDg0DaTbb3N4Z1NK/r3fhw==",
 			"dev": true,
 			"requires": {
 				"fsevents": "~2.1.2"
 			}
 		},
 		"rollup-plugin-svelte": {
-			"version": "6.1.0",
-			"resolved": "https://registry.npmjs.org/rollup-plugin-svelte/-/rollup-plugin-svelte-6.1.0.tgz",
-			"integrity": "sha512-TX1nIZSD6ePiSdYIEfpkvR7lLnP1nsSycCVz+vXbm5d5kIe5WMldo6fwcL/T8KPjc42XDgLaRcS74BorpQvpiA==",
+			"version": "6.1.1",
+			"resolved": "https://registry.npmjs.org/rollup-plugin-svelte/-/rollup-plugin-svelte-6.1.1.tgz",
+			"integrity": "sha512-ijnm0pH1ScrY4uxwaNXBpNVejVzpL2769hIEbAlnqNUWZrffLspu5/k9/l/Wsj3NrEHLQ6wCKGagVJonyfN7ow==",
 			"dev": true,
 			"requires": {
 				"require-relative": "^0.8.7",
@@ -2294,6 +2295,14 @@
 				}
 			}
 		},
+		"sade": {
+			"version": "1.7.4",
+			"resolved": "https://registry.npmjs.org/sade/-/sade-1.7.4.tgz",
+			"integrity": "sha512-y5yauMD93rX840MwUJr7C1ysLFBgMspsdTo4UVrDg3fXDvtwOyIqykhVAAm6fk/3au77773itJStObgK+LKaiA==",
+			"requires": {
+				"mri": "^1.1.0"
+			}
+		},
 		"safe-buffer": {
 			"version": "5.1.2",
 			"resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
@@ -2364,12 +2373,20 @@
 			"dev": true
 		},
 		"sirv": {
-			"version": "0.4.6",
-			"resolved": "https://registry.npmjs.org/sirv/-/sirv-0.4.6.tgz",
-			"integrity": "sha512-rYpOXlNbpHiY4nVXxuDf4mXPvKz1reZGap/LkWp9TvcZ84qD/nPBjjH/6GZsgIjVMbOslnY8YYULAyP8jMn1GQ==",
+			"version": "1.0.7",
+			"resolved": "https://registry.npmjs.org/sirv/-/sirv-1.0.7.tgz",
+			"integrity": "sha512-QMT2OTD3CTr8de9VByPmvSEeyt6k8/Cxg0J2kQJ5HNhIWfhFg9ypcIWWzez9rPWnGj+WtJ7AZD/MdT/vdilV/A==",
 			"requires": {
-				"@polka/url": "^0.5.0",
-				"mime": "^2.3.1"
+				"@polka/url": "^1.0.0-next.9",
+				"mime": "^2.3.1",
+				"totalist": "^1.0.0"
+			},
+			"dependencies": {
+				"@polka/url": {
+					"version": "1.0.0-next.11",
+					"resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.11.tgz",
+					"integrity": "sha512-3NsZsJIA/22P3QUyrEDNA2D133H4j224twJrdipXN38dpnIOzAbUDtOwkcJ5pXmn75w7LSQDjA4tO9dm1XlqlA=="
+				}
 			}
 		},
 		"source-map": {
@@ -2530,19 +2547,21 @@
 			}
 		},
 		"svelte": {
-			"version": "3.29.4",
-			"resolved": "https://registry.npmjs.org/svelte/-/svelte-3.29.4.tgz",
-			"integrity": "sha512-oW0fGHlyFFMvzRtIvOs84b0fOc0gmZNQcL5Is3hxuTpvaYX3pfd8oHy4KnOvbq4Ca6SG6AHdRMk7OhApTo0NqA==",
+			"version": "3.29.7",
+			"resolved": "https://registry.npmjs.org/svelte/-/svelte-3.29.7.tgz",
+			"integrity": "sha512-rx0g311kBODvEWUU01DFBUl3MJuJven04bvTVFUG/w0On/wuj0PajQY/QlXcJndFxG+W1s8iXKaB418tdHWc3A==",
 			"dev": true
 		},
 		"svelte-i18n": {
-			"version": "3.1.0",
-			"resolved": "https://registry.npmjs.org/svelte-i18n/-/svelte-i18n-3.1.0.tgz",
-			"integrity": "sha512-R4hH422srFiXekbJJYQp/NPgdiffE12ST0mvrrcbNs5SGpLdl4aK6EE1pWEP3BzTxly0witZy9GDERL8nXSDAw==",
+			"version": "3.2.5",
+			"resolved": "https://registry.npmjs.org/svelte-i18n/-/svelte-i18n-3.2.5.tgz",
+			"integrity": "sha512-EBPEPcf3Ro7av0b8g/owlfb8fQgnYFan/9gfpRtJ5EmJ7SUUnoCD8JngN9FCKY/cBu1kg2aCUCM6XyauMuAvIA==",
 			"requires": {
-				"commander": "^4.0.1",
-				"estree-walker": "^0.9.0",
-				"intl-messageformat": "^7.5.2",
+				"deepmerge": "^4.2.2",
+				"dlv": "^1.1.3",
+				"estree-walker": "^2.0.1",
+				"intl-messageformat": "^9.3.15",
+				"sade": "^1.7.4",
 				"tiny-glob": "^0.2.6"
 			}
 		},
@@ -2586,6 +2605,11 @@
 			"integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
 			"dev": true
 		},
+		"totalist": {
+			"version": "1.1.0",
+			"resolved": "https://registry.npmjs.org/totalist/-/totalist-1.1.0.tgz",
+			"integrity": "sha512-gduQwd1rOdDMGxFG1gEvhV88Oirdo2p+KjoYFU7k2g+i7n6AFFbDQ5kMPUsW0pNbfQsB/cwXvT1i4Bue0s9g5g=="
+		},
 		"trouter": {
 			"version": "2.0.1",
 			"resolved": "https://registry.npmjs.org/trouter/-/trouter-2.0.1.tgz",
@@ -2594,6 +2618,11 @@
 				"matchit": "^1.0.0"
 			}
 		},
+		"tslib": {
+			"version": "2.0.3",
+			"resolved": "https://registry.npmjs.org/tslib/-/tslib-2.0.3.tgz",
+			"integrity": "sha512-uZtkfKblCEQtZKBF6EBXVZeQNl82yqtDQdv+eck8u7tdPxjLu2/lp5/uPW+um2tpuxINHWy3GhiccY7QgEaVHQ=="
+		},
 		"uglify-js": {
 			"version": "3.11.5",
 			"resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.11.5.tgz",

site/package.json

@@ -9,7 +9,8 @@
 		"start": "node __sapper__/build",
 		"cy:run": "cypress run",
 		"cy:open": "cypress open",
-		"test": "run-p --race dev cy:run"
+        "test": "run-p --race dev cy:run",
+        "imageoptim": "imageoptim --imagealpha 'static/img/*.png'"
 	},
 	"dependencies": {
 		"@polka/send": "^0.4.0",
@@ -20,7 +21,7 @@
 		"marked": "^1.2.2",
 		"polka": "^0.5.2",
 		"svelte-i18n": "^3.1.0",
-		"sirv": "^0.4.2"
+		"sirv": "^1.0.7"
 	},
 	"devDependencies": {
 		"@babel/core": "^7.12.3",