Fixed lint errors

packages/app/src/server/routes/apiv3/page-listing.ts

@@ -98,7 +98,8 @@ export default (crowi: Crowi): Router => {
     const { pageIds } = req.query;
 
     try {
-      const shortBodiesMap = await crowi.pageService.shortBodiesMapByPageIds(pageIds, req.user);
+      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+      const shortBodiesMap = await crowi.pageService!.shortBodiesMapByPageIds(pageIds as string[], req.user);
       return res.apiv3({ shortBodiesMap });
     }
     catch (err) {

packages/app/src/server/service/page.ts

@@ -935,7 +935,7 @@ class PageService {
     }
   }
 
-  async shortBodiesMapByPageIds(pageIds = [], user) {
+  async shortBodiesMapByPageIds(pageIds: string[] = [], user) {
     const Page = mongoose.model('Page');
     const MAX_LENGTH = 350;