Code cleanup.

app/Api/V1/Controllers/Models/BudgetLimit/ShowController.php

@@ -19,6 +19,8 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+declare(strict_types=1);
+
 namespace FireflyIII\Api\V1\Controllers\Models\BudgetLimit;
 
 use FireflyIII\Api\V1\Controllers\Controller;
@@ -149,4 +151,4 @@ class ShowController extends Controller
         return response()->json($manager->createData($resource)->toArray())->header('Content-Type', self::CONTENT_TYPE);
     }
 
-}
+}