fix: update InAppNotificationService import and export syntax

apps/app/src/server/crowi/index.ts

@@ -50,7 +50,7 @@ import {
 } from '../service/g2g-transfer';
 import { GrowiBridgeService } from '../service/growi-bridge';
 import { initializeImportService } from '../service/import';
-import InAppNotificationService from '../service/in-app-notification';
+import { InAppNotificationService } from '../service/in-app-notification';
 import { InstallerService } from '../service/installer';
 import { normalizeData } from '../service/normalize-data';
 import PageService from '../service/page';

apps/app/src/server/service/in-app-notification.ts

@@ -24,7 +24,7 @@ const { STATUS_UNOPENED, STATUS_OPENED } = InAppNotificationStatuses;
 
 const logger = loggerFactory('growi:service:inAppNotification');
 
-export default class InAppNotificationService {
+export class InAppNotificationService {
   crowi!: Crowi;
 
   socketIoService!: any;
@@ -254,5 +254,3 @@ export default class InAppNotificationService {
     return;
   };
 }
-
-module.exports = InAppNotificationService;