Code cleanup.

app/Api/V1/Controllers/Models/TransactionCurrency/StoreController.php

@@ -1,5 +1,26 @@
 <?php
 
+/*
+ * StoreController.php
+ * Copyright (c) 2021 james@firefly-iii.org
+ *
+ * This file is part of Firefly III (https://github.com/firefly-iii).
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
 
 namespace FireflyIII\Api\V1\Controllers\Models\TransactionCurrency;
 
@@ -25,7 +46,6 @@ class StoreController extends Controller
     private CurrencyRepositoryInterface $repository;
     private UserRepositoryInterface     $userRepository;
 
-
     /**
      * CurrencyRepository constructor.
      *
@@ -49,7 +69,6 @@ class StoreController extends Controller
         );
     }
 
-
     /**
      * Store new currency.
      *
@@ -77,4 +96,4 @@ class StoreController extends Controller
 
         return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
-}
+}