Refactor code for improved readability and consistency; add flash message handling and enhance quiz functionality

src/Controller/Admin/DashboardController.php

@@ -22,6 +22,7 @@ use Symfony\Component\Routing\Attribute\Route;
 class DashboardController extends AbstractDashboardController
 {
     #[Route('/admin', name: 'admin')]
+    #[\Override]
     public function index(): Response
     {
         //        return parent::index();
@@ -44,12 +45,14 @@ class DashboardController extends AbstractDashboardController
         // return $this->render('some/path/my-dashboard.html.twig');
     }
 
+    #[\Override]
     public function configureDashboard(): Dashboard
     {
         return Dashboard::new()
             ->setTitle('TijdVoorDeTest');
     }
 
+    #[\Override]
     public function configureMenuItems(): iterable
     {
         yield MenuItem::linkToDashboard('Dashboard', 'fa fa-home');