[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>

libs/angular/src/auth/components/environment-selector.component.html

@@ -4,7 +4,7 @@
   } as data"
 >
   <div class="environment-selector-btn">
-    {{ "loggingInOn" | i18n }}:
+    {{ "accessing" | i18n }}:
     <button
       type="button"
       (click)="toggle(null)"