add TODO

apps/app/src/components/Sidebar/InAppNotification/InAppNotificationSubstance.tsx

@@ -5,6 +5,7 @@ import { useSWRxInAppNotifications } from '~/stores/in-app-notification';
 
 export const InAppNotificationSubstance = (): JSX.Element => {
 
+  // TODO: Infinite scroll implemented (https://redmine.weseek.co.jp/issues/138057)
   const { data: inAppNotificationData } = useSWRxInAppNotifications(6, undefined, undefined, { revalidateOnFocus: true });
 
   return (