design edit settings form

app/UI/Client/Setting/Forms/EditSettingForm.php

@@ -10,6 +10,8 @@ use ThurData\Servers\KerioEmail\Core\UI\Widget\Forms\Fields\Text;
 use ThurData\Servers\KerioEmail\Core\UI\Widget\Forms\BaseForm;
 use ThurData\Servers\KerioEmail\Core\UI\Widget\Forms\FormConstants;
 use ThurData\Servers\KerioEmail\Core\UI\Widget\Buttons\ButtonCustomAction;
+use ThurData\Servers\KerioEmail\Core\UI\Traits\Buttons;
+
 use function ThurData\Servers\KerioEmail\Core\Helper\di;
 
 /**
@@ -23,6 +25,7 @@ use function ThurData\Servers\KerioEmail\Core\Helper\di;
 class EditSettingForm extends BaseForm implements ClientArea
 {
     use FormExtendedTrait;
+    use Buttons;
 
     protected $id    = 'editSettingForm';
     protected $name  = 'editSettingForm';