fix: properly gate menus by role

src/Menu/ManagerMenuBuilder.php

@@ -204,16 +204,7 @@ class ManagerMenuBuilder extends AbstractMenuBuilder
             ],
         ]);
 
-        $this->addDivider($menu);
-
-        $request = $this->requestStack->getMainRequest();
-
-        $menu->addChild('zurück zur Übersicht', [
-            'uri' => rawurldecode($request->get('r')),
-            'extras' => [
-                'icon' => 'arrow-left',
-            ],
-        ]);
+        $this->addBackItem($menu, $options);
 
         return $menu;
     }