add correct name and improve navbar

src/app/app.ts

@@ -7,4 +7,15 @@ import { RouterLink, RouterLinkActive, RouterOutlet } from '@angular/router';
   templateUrl: './app.html',
   styleUrl: './app.css'
 })
-export class App {}
+export class App {
+  isMenuOpen = false;
+  readonly currentYear = new Date().getFullYear();
+
+  toggleMenu(): void {
+    this.isMenuOpen = !this.isMenuOpen;
+  }
+
+  closeMenu(): void {
+    this.isMenuOpen = false;
+  }
+}