[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/common/src/platform/models/data/server-config.data.ts

@@ -2,6 +2,7 @@ import { Jsonify } from "type-fest";
 
 import { AllowedFeatureFlagTypes } from "../../../enums/feature-flag.enum";
 import { Region } from "../../abstractions/environment.service";
+import { ServerSettings } from "../domain/server-settings";
 import {
   ServerConfigResponse,
   ThirdPartyServerConfigResponse,
@@ -15,6 +16,7 @@ export class ServerConfigData {
   environment?: EnvironmentServerConfigData;
   utcDate: string;
   featureStates: { [key: string]: AllowedFeatureFlagTypes } = {};
+  settings: ServerSettings;
 
   constructor(serverConfigResponse: Partial<ServerConfigResponse>) {
     this.version = serverConfigResponse?.version;
@@ -27,6 +29,7 @@ export class ServerConfigData {
       ? new EnvironmentServerConfigData(serverConfigResponse.environment)
       : null;
     this.featureStates = serverConfigResponse?.featureStates;
+    this.settings = new ServerSettings(serverConfigResponse.settings);
   }
 
   static fromJSON(obj: Jsonify<ServerConfigData>): ServerConfigData {