feat: add apple as idp (#6442)

* feat: manage apple idp

* handle apple idp callback

* add tests for provider

* basic console implementation

* implement flow for login UI and add logos / styling

* tests

* cleanup

* add upload button

* begin i18n

* apple logo positioning, file upload component

* fix add apple instance idp

* add missing apple logos for login

* update to go 1.21

* fix slice compare

* revert permission changes

* concrete error messages

* translate login apple logo -y-2px

* change form parsing

* sign in button

* fix tests

* lint console

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Co-authored-by: peintnermax <max@caos.ch>

internal/api/ui/login/static/templates/login.html

@@ -52,7 +52,11 @@
         <a href="{{ externalIDPAuthURL $reqid $provider.IDPConfigID}}"
             class="lgn-idp {{idpProviderClass $provider.IDPType}}">
             <span class="logo"></span>
+            {{if $provider.IDPType.IsSignInButton}}
+            <span class="provider-name">{{t "SignIn" "Provider" $provider.DisplayName}}</span>
+            {{else}}
             <span class="provider-name">{{$provider.DisplayName}}</span>
+            {{end}}
         </a>
         {{end}}
     </div>