clean code

packages/app/resource/locales/zh_CN/translation.json

@@ -437,7 +437,6 @@
       "recursive": "Duplicate children of under this path recursively"
     }
   },
-
   "duplicated_pages": "{{path}} 已重复",
 	"modal_putback": {
 		"label": {

packages/app/src/components/Sidebar/PageTree/ItemsTree.tsx

@@ -146,7 +146,6 @@ const ItemsTree: FC<ItemsTreeProps> = (props: ItemsTreeProps) => {
     const duplicatedHandler: OnDuplicatedFunction = (path) => {
       toastSuccess(t('duplicated_pages', { path }));
 
-
       advancePt();
       advanceFts();
       advanceDpl();