refactor(mobile): Refactor video player page and gallery bottom app bar (#7625)

* Fixes double video auto initialize issue and placeholder for video controller

* WIP unravel stack index

* Refactors video player controller

format

fixing video

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Working

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* Fixes hide on pause

* Got hiding when tapped working

* Hides controls when video starts and fixes placeholder for memory card

Remove prints

* Fixes show controls with microtask

* fix LivePhotos not playing

* removes unused function callbacks and moves wakelock

* Update motion video

* Fixing motion photo playing

* Renames to isPlayingVideo

* Fixes playing video on change

* pause on dispose

* fixing issues with sync between controls

* Adds gallery app bar

* Switches to memoized

* Fixes pause

* Revert "Switches to memoized"

This reverts commit 234e6741dea05aa0b967dde746f1d625f15bed94.

* uses stateful widget

* Fixes double video play by using provider and new chewie video player

wip

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Fixes motion photos

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Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

mobile/lib/modules/asset_viewer/providers/asset_stack.provider.dart

@@ -2,6 +2,9 @@ import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:immich_mobile/shared/models/asset.dart';
 import 'package:immich_mobile/shared/providers/db.provider.dart';
 import 'package:isar/isar.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+part 'asset_stack.provider.g.dart';
 
 class AssetStackNotifier extends StateNotifier<List<Asset>> {
   final Asset _asset;
@@ -49,3 +52,8 @@ final assetStackProvider =
       .sortByFileCreatedAtDesc()
       .findAll();
 });
+
+@riverpod
+int assetStackIndex(AssetStackIndexRef ref, Asset asset) {
+  return -1;
+}