Various code cleanup

app/Api/V2/Controllers/UserGroup/StoreController.php

@@ -1,4 +1,6 @@
 <?php
+
+
 /*
  * StoreController.php
  * Copyright (c) 2023 james@firefly-iii.org
@@ -19,6 +21,8 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+declare(strict_types=1);
+
 namespace FireflyIII\Api\V2\Controllers\UserGroup;
 
 use FireflyIII\Api\V2\Controllers\Controller;
@@ -50,6 +54,8 @@ class StoreController extends Controller
     }
 
     /**
+     * @param StoreRequest $request
+     *
      * @return JsonResponse
      */
     public function store(StoreRequest $request): JsonResponse