80785 add comment

packages/app/src/components/SearchPage/DeleteSelectedPageGroup.tsx

@@ -17,10 +17,10 @@ const DeleteSelectedPageGroup:FC<Props> = (props:Props) => {
     checkboxState, onClickInvoked, onCheckInvoked,
   } = props;
 
-
-
   return (
     <>
+      {/** todo: implement the design for CheckboxType = INDETERMINATE */}
+      {/** refs: https://estoc.weseek.co.jp/redmine/issues/81246  */}
       <input
         id="check-all-pages"
         type="checkbox"