Handle settings live refresh, unsubscribe subscriptions

src-ui/src/app/services/settings.service.ts

@@ -1,6 +1,7 @@
 import { DOCUMENT } from '@angular/common'
 import { HttpClient } from '@angular/common/http'
 import {
+  EventEmitter,
   Inject,
   Injectable,
   LOCALE_ID,
@@ -46,6 +47,8 @@ export class SettingsService {
 
   public displayName: string
 
+  public settingsSaved: EventEmitter<any> = new EventEmitter()
+
   constructor(
     rendererFactory: RendererFactory2,
     @Inject(DOCUMENT) private document,
@@ -370,7 +373,13 @@ export class SettingsService {
   }
 
   storeSettings(): Observable<any> {
-    return this.http.post(this.baseUrl, { settings: this.settings })
+    return this.http.post(this.baseUrl, { settings: this.settings }).pipe(
+      tap((results) => {
+        if (results.success) {
+          this.settingsSaved.emit()
+        }
+      })
+    )
   }
 
   maybeMigrateSettings() {