Adds ServiceWorker Service

Adds ServiceWorker Service for Updating PWA

src/app/app.component.ts

@@ -1,5 +1,6 @@
 import { Component, OnInit } from '@angular/core';
 import { AuthService } from './shared/auth/auth.service';
+import {UpdateService} from "./shared/service-worker/update.service";
 
 @Component({
     selector: 'app-root',
@@ -7,10 +8,12 @@ import { AuthService } from './shared/auth/auth.service';
     styleUrls: ['./app.component.css']
 })
 export class AppComponent implements OnInit {
-    
+
     title = 'frontend-hideyoshi.com';
 
-    constructor(private authService: AuthService) {}
+    constructor(private authService: AuthService, private serviceWorker: UpdateService) {
+        this.serviceWorker.checkForUpdates();
+    }
 
     ngOnInit(): void {
         this.authService.autoLogin();