Use PSR-12 code style

app/Api/V2/Controllers/Transaction/List/AccountController.php

@@ -77,8 +77,7 @@ class AccountController extends Controller
         $paginator->setPath(route('api.v2.accounts.transactions', [$account->id])); // TODO  . $this->buildParams()
 
         return response()
-            ->json($this->jsonApiList('transactions', $paginator, new TransactionGroupTransformer))
+            ->json($this->jsonApiList('transactions', $paginator, new TransactionGroupTransformer()))
             ->header('Content-Type', self::CONTENT_TYPE);
     }
-
 }

app/Api/V2/Controllers/Transaction/Sum/BillController.php

@@ -31,6 +31,4 @@ use FireflyIII\Api\V2\Controllers\Controller;
  */
 class BillController extends Controller
 {
-
-
 }