[PM-8115] Desktop, Extension UI Refresh: Self-hosted Setup Dialog (#11597)

* Reimplement RegistrationSelfHostedEnvConfigDialogComponent

* Update EnvironmentSelectorComponent text based on feature flag.

* Initialize RegistrationSelfHostedEnvConfigDialog with existing values if self hosted

* Cleanup debug

* Add comment

* Remove changes to home and login components

* Remove changes to desktop login component

* Remove changes to browser home component

* Simplify accessing string.

* Add environment selector service.

* Cleanup unused imports in environment-selector

* Launch new env selector dialog from desktop

* Fix lint errors

* Address PR feedback: move dialog component, remove EnvironmentSelectorService, remove unused translation string

* Remove changes to AnonLayout

* PM-8115 - Export Re-usable component from Libs/auth for clean import elsewhere in clients.

* Remove unused accessingString variable

* Add success toast

---------

Co-authored-by: Jared Snider <jsnider@bitwarden.com>

apps/browser/src/_locales/en/messages.json

@@ -3234,9 +3234,6 @@
       }
     }
   },
-  "loggingInOn": {
-    "message": "Logging in on"
-  },
   "opensInANewWindow": {
     "message": "Opens in a new window"
   },

apps/desktop/src/locales/en/messages.json

@@ -2804,9 +2804,6 @@
     "message": "EU",
     "description": "European Union"
   },
-  "loggingInOn": {
-    "message": "Logging in on"
-  },
   "selfHostedServer": {
     "message": "self-hosted"
   },