Switch to new bottom menu for hidden page

lib/ui/viewer/gallery/hidden_page.dart

@@ -8,10 +8,10 @@ import 'package:photos/events/files_updated_event.dart';
 import 'package:photos/models/gallery_type.dart';
 import 'package:photos/models/selected_files.dart';
 import 'package:photos/services/collections_service.dart';
+import 'package:photos/ui/viewer/actions/file_selection_overlay_bar.dart';
 import 'package:photos/ui/viewer/gallery/empty_hidden_widget.dart';
 import 'package:photos/ui/viewer/gallery/gallery.dart';
 import 'package:photos/ui/viewer/gallery/gallery_app_bar_widget.dart';
-import 'package:photos/ui/viewer/gallery/gallery_overlay_widget.dart';
 
 class HiddenPage extends StatelessWidget {
   final String tagPrefix;
@@ -80,10 +80,10 @@ class HiddenPage extends StatelessWidget {
         alignment: Alignment.bottomCenter,
         children: [
           gallery,
-          GalleryOverlayWidget(
+          FileSelectionOverlayBar(
             overlayType,
             _selectedFiles,
-          )
+          ),
         ],
       ),
     );