fix: do not show stack action if there is only one selection (immich-app#21868)

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

Author: shenlong-tanwen

mobile/lib/presentation/widgets/bottom_sheet/archive_bottom_sheet.widget.dart

@@ -43,7 +43,7 @@ class ArchiveBottomSheet extends ConsumerWidget {
           const EditDateTimeActionButton(source: ActionSource.timeline),
           const EditLocationActionButton(source: ActionSource.timeline),
           const MoveToLockFolderActionButton(source: ActionSource.timeline),
-          const StackActionButton(source: ActionSource.timeline),
+          if (multiselect.selectedAssets.length > 1) const StackActionButton(source: ActionSource.timeline),
         ],
         if (multiselect.hasLocal) ...[
           const DeleteLocalActionButton(source: ActionSource.timeline),

mobile/lib/presentation/widgets/bottom_sheet/favorite_bottom_sheet.widget.dart

@@ -2,8 +2,8 @@ import 'package:flutter/material.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:immich_mobile/constants/enums.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/archive_action_button.widget.dart';
-import 'package:immich_mobile/presentation/widgets/action_buttons/delete_permanent_action_button.widget.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/delete_local_action_button.widget.dart';
+import 'package:immich_mobile/presentation/widgets/action_buttons/delete_permanent_action_button.widget.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/download_action_button.widget.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/edit_date_time_action_button.widget.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/edit_location_action_button.widget.dart';
@@ -43,7 +43,7 @@ class FavoriteBottomSheet extends ConsumerWidget {
           const EditDateTimeActionButton(source: ActionSource.timeline),
           const EditLocationActionButton(source: ActionSource.timeline),
           const MoveToLockFolderActionButton(source: ActionSource.timeline),
-          const StackActionButton(source: ActionSource.timeline),
+          if (multiselect.selectedAssets.length > 1) const StackActionButton(source: ActionSource.timeline),
         ],
         if (multiselect.hasLocal) ...[
           const DeleteLocalActionButton(source: ActionSource.timeline),

mobile/lib/presentation/widgets/bottom_sheet/general_bottom_sheet.widget.dart

@@ -104,7 +104,7 @@ class _GeneralBottomSheetState extends ConsumerState<GeneralBottomSheet> {
           const EditDateTimeActionButton(source: ActionSource.timeline),
           const EditLocationActionButton(source: ActionSource.timeline),
           const MoveToLockFolderActionButton(source: ActionSource.timeline),
-          const StackActionButton(source: ActionSource.timeline),
+          if (multiselect.selectedAssets.length > 1) const StackActionButton(source: ActionSource.timeline),
           isTrashEnable
               ? const TrashActionButton(source: ActionSource.timeline)
               : const DeletePermanentActionButton(source: ActionSource.timeline),

mobile/lib/presentation/widgets/bottom_sheet/remote_album_bottom_sheet.widget.dart

@@ -1,12 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
-import 'package:immich_mobile/extensions/translate_extensions.dart';
 import 'package:immich_mobile/constants/enums.dart';
 import 'package:immich_mobile/domain/models/album/album.model.dart';
 import 'package:immich_mobile/domain/models/asset/base_asset.model.dart';
+import 'package:immich_mobile/extensions/translate_extensions.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/archive_action_button.widget.dart';
-import 'package:immich_mobile/presentation/widgets/action_buttons/delete_permanent_action_button.widget.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/delete_local_action_button.widget.dart';
+import 'package:immich_mobile/presentation/widgets/action_buttons/delete_permanent_action_button.widget.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/download_action_button.widget.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/edit_date_time_action_button.widget.dart';
 import 'package:immich_mobile/presentation/widgets/action_buttons/edit_location_action_button.widget.dart';
@@ -100,7 +100,7 @@ class _RemoteAlbumBottomSheetState extends ConsumerState<RemoteAlbumBottomSheet>
           const EditDateTimeActionButton(source: ActionSource.timeline),
           const EditLocationActionButton(source: ActionSource.timeline),
           const MoveToLockFolderActionButton(source: ActionSource.timeline),
-          const StackActionButton(source: ActionSource.timeline),
+          if (multiselect.selectedAssets.length > 1) const StackActionButton(source: ActionSource.timeline),
         ],
         if (multiselect.hasLocal) ...[
           const DeleteLocalActionButton(source: ActionSource.timeline),