[PM-10610] push notification to end user notification service (#13876)

* use NotificationsService.notifictions$ for tracking inside default end user notification

libs/common/src/enums/notification-type.enum.ts

@@ -24,4 +24,6 @@ export enum NotificationType {
   SyncOrganizations = 17,
   SyncOrganizationStatusChanged = 18,
   SyncOrganizationCollectionSettingChanged = 19,
+  Notification = 20,
+  NotificationStatus = 21,
 }

libs/common/src/platform/notifications/internal/noop-notifications.service.ts

@@ -1,9 +1,14 @@
-import { Subscription } from "rxjs";
+import { Observable, Subject, Subscription } from "rxjs";
+
+import { NotificationResponse } from "@bitwarden/common/models/response/notification.response";
+import { UserId } from "@bitwarden/common/types/guid";
 
 import { LogService } from "../../abstractions/log.service";
 import { NotificationsService } from "../notifications.service";
 
 export class NoopNotificationsService implements NotificationsService {
+  notifications$: Observable<readonly [NotificationResponse, UserId]> = new Subject();
+
   constructor(private logService: LogService) {}
 
   startListening(): Subscription {

libs/common/src/platform/notifications/notifications.service.ts

@@ -1,9 +1,13 @@
-import { Subscription } from "rxjs";
+import { Observable, Subscription } from "rxjs";
+
+import { NotificationResponse } from "@bitwarden/common/models/response/notification.response";
+import { UserId } from "@bitwarden/common/types/guid";
 
 /**
  * A service offering abilities to interact with push notifications from the server.
  */
 export abstract class NotificationsService {
+  abstract notifications$: Observable<readonly [NotificationResponse, UserId]>;
   /**
    * Starts automatic listening and processing of notifications, should only be called once per application,
    * or you will risk notifications being processed multiple times.