WIP: Implement feedback functionality

src/Controller/Admin/System/FeedbackSet/IndexController.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Controller\Admin\System\FeedbackSet;
+
+use App\Repository\FeedbackSetRepository;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Annotation\Route;
+use Symfony\Component\Security\Http\Attribute\IsGranted;
+
+class IndexController extends AbstractController
+{
+    public function __construct(private readonly FeedbackSetRepository $feedbackSetRepository)
+    {}
+
+    #[Route('/admin/system/feedback-set', name: 'app_admin_system_feedback_set_index')]
+    #[IsGranted('ROLE_ADMIN')]
+    public function index(): Response
+    {
+        $feedbackSets = $this
+            ->feedbackSetRepository
+            ->findAll()
+        ;
+
+        return $this->render('admin/system/feedback_set/index.html.twig', [
+            'feedbackSets' => $feedbackSets,
+        ]);
+    }
+}