[TOOLS] Fix all errors found by PHPStan level 1

src/Controller/Note.php

@@ -47,11 +47,6 @@ class Note extends Controller
      */
     public function note_show(Request $request, int $id)
     {
-        return $this->note($id, function ($note) use ($id) {
-            return [
-                '_template' => 'note/view.html.twig',
-                'note'      => $note,
-            ];
-        });
+        return $this->note($id, fn ($note) => ['_template' => 'note/view.html.twig', 'note' => $note]);
     }
 }