fix warning

mobile/lib/pages/album/album_options.page.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:auto_route/auto_route.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
@@ -51,7 +53,7 @@ class AlbumOptionsPage extends HookConsumerWidget {
         final isSuccess = await ref.read(albumProvider.notifier).leaveAlbum(album);
 
         if (isSuccess) {
-          context.navigateTo(const TabControllerRoute(children: [AlbumsRoute()]));
+          unawaited(context.navigateTo(const TabControllerRoute(children: [AlbumsRoute()])));
         } else {
           showErrorMessage();
         }