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

---------

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

internal/api/ui/login/login.go

@@ -120,6 +120,12 @@ func createCSRFInterceptor(cookieName string, csrfCookieKey []byte, externalSecu
 				handler.ServeHTTP(w, r)
 				return
 			}
+			// ignore form post callback
+			// it will redirect to the "normal" callback, where the cookie is set again
+			if r.URL.Path == EndpointExternalLoginCallbackFormPost && r.Method == http.MethodPost {
+				handler.ServeHTTP(w, r)
+				return
+			}
 			csrf.Protect(csrfCookieKey,
 				csrf.Secure(externalSecure),
 				csrf.CookieName(http_utils.SetCookiePrefix(cookieName, "", path, externalSecure)),