switcher for backup

app/UI/VmUpdate/Sections/Qemu/AdditionalDiskSection.php

@@ -77,12 +77,8 @@ class AdditionalDiskSection extends BaseSection implements ClientArea
         //backup
         if ($this->configuration()->isPermissionAdditionalDiskBackup())
         {
-            $field = new Select('additionalDiskBackup');
-            $field->setAvailableValues([
-                'on' => 'Enable',
-                'off'=>'Disable',
-            ]);
-            $field->replaceClasses(['lu-col-md-6']);
+            $field = new Switcher('additionalDiskBackup');
+            $field->replaceClasses(['lu-form-check lu-m-b-2x']);
             $this->addField($field);
         }
     }