💄 Fix notification bottom sheet covered with sheet

[FIX] linux: restrict setAsFrameless to Wayland only

lib/main.dart

@@ -120,13 +120,24 @@ void main() async {
       windowButtonVisibility: true,
     );
     windowManager.waitUntilReadyToShow(windowOptions, () async {
+      final env = Platform.environment;
+      final isWayland = env.containsKey('WAYLAND_DISPLAY');
+
+      if (isWayland) {
+        try {
+          await windowManager.setAsFrameless();
+        } catch (e) {
+          debugPrint('[Wayland] setAsFrameless failed: $e');
+        }
+      }
       await windowManager.setMinimumSize(defaultSize);
       await windowManager.show();
       await windowManager.focus();
       final opacity = prefs.getDouble(kAppWindowOpacity) ?? 1.0;
       await windowManager.setOpacity(opacity);
       talker.info(
-        "[SplashScreen] Desktop window is ready with size: ${initialSize.width}x${initialSize.height}",
+        "[SplashScreen] Desktop window is ready with size: ${initialSize.width}x${initialSize.height}"
+        "${isWayland ? " (Wayland frameless fix applied)" : ""}",
       );
     });
   }

lib/route.dart

@@ -25,7 +25,6 @@ import 'package:island/screens/tabs.dart';
 import 'package:island/screens/explore.dart';
 import 'package:island/screens/discovery/article_detail.dart';
 import 'package:island/screens/account.dart';
-import 'package:island/screens/notification.dart';
 import 'package:island/screens/wallet.dart';
 import 'package:island/screens/account/relationship.dart';
 import 'package:island/screens/account/profile.dart';
@@ -392,11 +391,6 @@ final routerProvider = Provider<GoRouter>((ref) {
                       ),
                     ],
                   ),
-                  GoRoute(
-                    name: 'notifications',
-                    path: '/account/notifications',
-                    builder: (context, state) => const NotificationScreen(),
-                  ),
                   GoRoute(
                     name: 'wallet',
                     path: '/account/wallet',

lib/screens/account.dart

@@ -285,7 +285,8 @@ class AccountScreen extends HookConsumerWidget {
                 showModalBottomSheet(
                   context: context,
                   isScrollControlled: true,
-                  builder: (context) => const NotificationScreen(),
+                  useRootNavigator: true,
+                  builder: (context) => const NotificationSheet(),
                 );
               },
             ),

lib/screens/explore.dart

@@ -57,7 +57,8 @@ Widget notificationIndicatorWidget(
       showModalBottomSheet(
         context: context,
         isScrollControlled: true,
-        builder: (context) => const NotificationScreen(),
+        useRootNavigator: true,
+        builder: (context) => const NotificationSheet(),
       );
     },
   ),

lib/screens/notification.dart

@@ -112,8 +112,8 @@ class NotificationListNotifier extends _$NotificationListNotifier
   }
 }
 
-class NotificationScreen extends HookConsumerWidget {
+class NotificationSheet extends HookConsumerWidget {
-  const NotificationScreen({super.key});
+  const NotificationSheet({super.key});
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {

lib/widgets/app_scaffold.dart

@@ -374,10 +374,10 @@ class PageBackButton extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final isDesktop =
+    final hasPageAction =
-        !kIsWeb && (Platform.isMacOS || Platform.isLinux || Platform.isWindows);
+        !kIsWeb && Platform.isMacOS;
 
-    if (isDesktop && isWideScreen(context)) return const SizedBox.shrink();
+    if (hasPageAction && isWideScreen(context)) return const SizedBox.shrink();
 
     return IconButton(
       onPressed: () {

lib/widgets/chat/message_item.dart

@@ -14,7 +14,6 @@ import 'package:island/pods/chat/messages_notifier.dart';
 import 'package:island/pods/translate.dart';
 import 'package:island/pods/config.dart';
 import 'package:island/widgets/account/account_pfc.dart';
-import 'package:island/widgets/app_scaffold.dart';
 import 'package:island/widgets/chat/message_content.dart';
 import 'package:island/widgets/chat/message_indicators.dart';
 import 'package:island/widgets/chat/message_sender_info.dart';
@@ -666,17 +665,11 @@ class MessageItemDisplayBubble extends HookConsumerWidget {
             ? Theme.of(context).colorScheme.primaryContainer.withOpacity(0.5)
             : Theme.of(context).colorScheme.surfaceContainer;
 
-    final hasBackground =
-        ref.watch(backgroundImageFileProvider).valueOrNull != null;
-
     final remoteMessage = message.toRemoteMessage();
     final sender = remoteMessage.sender;
 
     return Material(
-      color:
+      color: Colors.transparent,
-          hasBackground
-              ? Colors.transparent
-              : Theme.of(context).colorScheme.surface,
       child: Padding(
         padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
         child: Column(