fix-issue-1742 修复embeds中无法上传图片的问题

src/Form/Concerns/HasFiles.php

@@ -66,7 +66,7 @@ trait HasFiles
      */
     public function findFieldByName(?string $column)
     {
-        $columns    = explode('.', $column);
+        $columns = explode('.', $column);
         $field = $this->builder->field($columns[0]);
         unset($columns[0]);
         foreach ($columns as $column) {

src/Form/Field/File.php

@@ -247,7 +247,7 @@ class File extends Field implements UploadFieldInterface
     public function setErrorKey($key)
     {
         parent::setErrorKey($key);
-        $this->options['formData']['upload_column']    = $key;
+        $this->options['formData']['upload_column'] = $key;
 
         return $this;
     }