feat(mobile): move top bar buttons into kebabu menu in AssetViewer (#24461)

* chore(mobile):  i18n: "open_asset_info" in viewer kebab menu

* feat(mobile): move some top buttons into kebabu menu

* refactor(mobile): viewer kebab menu to use context-based button generation

* feat(mobile): refactor action button and kebab menu to use ConsumerWidget for improved state management

* feat(mobile): pass original theme to ViewerKebabMenu for consistent styling

* chore: styling

---------

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

mobile/lib/presentation/widgets/action_buttons/add_action_button.widget.dart

@@ -174,10 +174,12 @@ class _AddActionButtonState extends ConsumerState<AddActionButton> {
       consumeOutsideTap: true,
       style: MenuStyle(
         backgroundColor: WidgetStatePropertyAll(themeData.scaffoldBackgroundColor),
+        surfaceTintColor: const WidgetStatePropertyAll(Colors.grey),
         elevation: const WidgetStatePropertyAll(4),
         shape: const WidgetStatePropertyAll(
           RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(12))),
         ),
+        padding: const WidgetStatePropertyAll(EdgeInsets.symmetric(vertical: 6)),
       ),
       menuChildren: widget.originalTheme != null
           ? [