Task: Refactor filter panel to shared partial

src/Controller/Admin/Assignment/IndexController.php

@@ -48,6 +48,7 @@ class IndexController extends AbstractController
         return $this->render('admin/assignment/index.html.twig', [
             'pagination' => $pagination,
             'filterForm' => $filterForm,
+            'filterDto' => $filterDto,
         ]);
     }
 }