refactor: refactoring imports

将来ESMに移行しやすいように
Related: #7658

なんかmochaが起動しなくなってるけど理由不明
すぐ直したい

src/services/push-notification.ts

@@ -1,9 +1,9 @@
 import * as push from 'web-push';
-import config from '@/config';
-import { SwSubscriptions } from '../models';
-import { fetchMeta } from '@/misc/fetch-meta';
-import { PackedNotification } from '../models/repositories/notification';
-import { PackedMessagingMessage } from '../models/repositories/messaging-message';
+import config from '@/config/index.js';
+import { SwSubscriptions } from '@/models/index.js';
+import { fetchMeta } from '@/misc/fetch-meta.js';
+import { PackedNotification } from '../models/repositories/notification.js';
+import { PackedMessagingMessage } from '../models/repositories/messaging-message.js';
 
 type notificationType = 'notification' | 'unreadMessagingMessage';
 type notificationBody = PackedNotification | PackedMessagingMessage;