Migrate util/indexedDB to TypeScript

Summary: Migrated indexedDB.js to indexedDB.tsx

Reviewed By: danielbuechele

Differential Revision: D17133611

fbshipit-source-id: 819eccc12c8cbacee5e9cdf8fbfce4f5fbb08813

src/plugins/navigation/index.js

@@ -19,7 +19,7 @@ import {
   removeBookmark,
   readBookmarksFromDB,
   writeBookmarkToDB,
-} from './util/indexedDB';
+} from './util/indexedDB.tsx';
 import {
   appMatchPatternsToAutoCompleteProvider,
   bookmarksToAutoCompleteProvider,