feat(console): add new step to activate SMTP provider (#7956)

# Which Problems Are Solved

- In #7929 it was detected that it would be better to show the
activate/deactivate action for a SMTP configuration in the wizard as for
some users it'd not be intuitive that the SMTP provider must be
activated so Zitadel can use it to send notifications.

# How the Problems Are Solved

- When a new SMTP provider is added or updated, the wizard has a new
step that allow us to activate or deactivate the provider configured in
the previous step. The following video shows the new wizard:


https://github.com/zitadel/zitadel/assets/30386061/178234d6-73dc-4719-af0b-1d6f19bf3f7d

# Additional Context

- Closes #7929

console/src/assets/i18n/en.json

@@ -2246,7 +2246,7 @@
   "SMTP": {
     "LIST": {
       "TITLE": "SMTP Provider",
-      "DESCRIPTION": "These are the SMTP providers for your Zitadel instance. Activate the one you want to use to send notifications to your users.",
+      "DESCRIPTION": "These are the SMTP providers for your ZITADEL instance. Activate the one you want to use to send notifications to your users.",
       "EMPTY": "No SMTP Provider available",
       "ACTIVATED": "Activated",
       "ACTIVATE": "Activate provider",
@@ -2274,7 +2274,16 @@
         "CURRENT_DESC_TITLE": "These are your SMTP settings",
         "PROVIDER_SETTINGS": "SMTP Provider Settings",
         "SENDER_SETTINGS": "Sender Settings",
-        "TEST_SETTINGS": "Test SMTP Settings"
+        "TEST_SETTINGS": "Test SMTP Settings",
+        "NEXT_STEPS": "Next Steps",
+        "ACTIVATE": {
+          "TITLE": "Activate your SMTP Provider",
+          "DESCRIPTION": "ZITADEL cannot use this SMTP Provider to send notifications until you activate it. If you activate this provider any other provider that was active will now be deactivated."
+        },
+        "DEACTIVATE": {
+          "TITLE": "Deactivate your SMTP Provider",
+          "DESCRIPTION": "If you deactivate this SMTP Provider, ZITADEL cannot use it to send notifications until you activate it again."
+        }
       }
     },
     "DETAIL": {