[PM-5237] Clients, Self Hosted: Login - Hide "Create account" when registration disabled (#11811)

* Add server settings model and service.

* Inject ServerSettingsService into the login-secondary-content component.

* Fix merge conflict

* Add server settings to old views

* Remove server settings from desktop/mobile

* Cleanup unused code

* Remove changes to default config

* Conditionally show/hide HR element

* Add tests

* PM-5237 - Move ServerSettingsService to jslib-services.module so it is the same across all clients and to solve NullInjectorErrors on desktop & browser extension

* Remove change to v1 components

* Rename ServerSettingsService to DefaultServerSettingsService

* Remove unnecessary map call

* Remove server interface in favor of using ServerSettings class

* Add back HR element

---------

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

libs/angular/src/services/jslib-services.module.ts

@@ -178,6 +178,7 @@ import { BulkEncryptServiceImplementation } from "@bitwarden/common/platform/ser
 import { MultithreadEncryptServiceImplementation } from "@bitwarden/common/platform/services/cryptography/multithread-encrypt.service.implementation";
 import { DefaultBroadcasterService } from "@bitwarden/common/platform/services/default-broadcaster.service";
 import { DefaultEnvironmentService } from "@bitwarden/common/platform/services/default-environment.service";
+import { DefaultServerSettingsService } from "@bitwarden/common/platform/services/default-server-settings.service";
 import { FileUploadService } from "@bitwarden/common/platform/services/file-upload/file-upload.service";
 import { KeyGenerationService } from "@bitwarden/common/platform/services/key-generation.service";
 import { MigrationBuilderService } from "@bitwarden/common/platform/services/migration-builder.service";
@@ -1322,6 +1323,11 @@ const safeProviders: SafeProvider[] = [
       InternalUserDecryptionOptionsServiceAbstraction,
     ],
   }),
+  safeProvider({
+    provide: DefaultServerSettingsService,
+    useClass: DefaultServerSettingsService,
+    deps: [ConfigService],
+  }),
   safeProvider({
     provide: RegisterRouteService,
     useClass: RegisterRouteService,