Merge pull request z-song#4282 from z-song/analysis-m44P7V

Apply fixes from StyleCI

Author: z-song

src/Form/Field/File.php

@@ -152,7 +152,7 @@ protected function preview()
     public function hidePreview()
     {
         return $this->options([
-            'showPreview' => false
+            'showPreview' => false,
         ]);
     }