feat: expanded sliver app bar (#19827)

* use mutex

* feat: cool app bar

* animation

* adapt to more pages

* animation

* better animation

* fix: asset count

* Revert "fix: asset count"

This reverts commit 673a5b264b.

* fix: asset count

* fix: shaky animation on Android

* tunning

* offset SizedBox to fix scroll jump on multiselect

---------

Co-authored-by: shenlong-tanwen <139912620+shalong-tanwen@users.noreply.github.com>

mobile/lib/presentation/pages/dev/drift_trash.page.dart

@@ -1,6 +1,7 @@
 import 'package:auto_route/auto_route.dart';
-import 'package:flutter/widgets.dart';
+import 'package:flutter/material.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/extensions/translate_extensions.dart';
 import 'package:immich_mobile/presentation/widgets/timeline/timeline.widget.dart';
 import 'package:immich_mobile/providers/infrastructure/timeline.provider.dart';
 import 'package:immich_mobile/providers/user.provider.dart';
@@ -27,7 +28,16 @@ class DriftTrashPage extends StatelessWidget {
           },
         ),
       ],
-      child: const Timeline(),
+      child: Timeline(
+        appBar: SliverAppBar(
+          title: Text('trash'.t(context: context)),
+          floating: true,
+          snap: true,
+          pinned: true,
+          centerTitle: true,
+          elevation: 0,
+        ),
+      ),
     );
   }
 }