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/i18n/bg.yaml

@@ -360,6 +360,7 @@ Footer:
   PrivacyPolicy: Политика за поверителност
   Help: Помогне
   SupportEmail: Поддръжка на имейл
+SignIn: Влезте с {{.Provider}}
 Errors:
   Internal: Възникна вътрешна грешка
   AuthRequest: