dev env setup

packages/frontend/src/app/app.ts

@@ -1,6 +1,7 @@
-import { Component, signal } from '@angular/core';
+import { Component, inject, signal } from '@angular/core';
 import { MatButtonModule } from '@angular/material/button';
 import { RouterModule, RouterOutlet } from '@angular/router';
+import { Authentication } from './services/authentication';
 
 @Component({
   selector: 'app-root',
@@ -9,10 +10,6 @@ import { RouterModule, RouterOutlet } from '@angular/router';
   styleUrl: './app.scss',
 })
 export class App {
-  protected loggedIn = signal(false);
   protected readonly title = signal('frontend');
-
-  protected onLogOut() {
-    this.loggedIn.set(false);
-  }
+  protected readonly auth = inject(Authentication);
 }