style(theme): 客户端切换深色视觉风格

lib/pages/mine/mine_view.dart

@@ -91,7 +91,7 @@ class _MyPageState extends State<MyPage> {
       ),
     );
     return Theme(
-      data: AppTheme.light(),
+      data: AppTheme.dark(),
       child: embedded
           ? content
           : Scaffold(backgroundColor: AppColors.ink, body: content),
@@ -223,7 +223,7 @@ class _MyPageState extends State<MyPage> {
   Future<void> _openLanguage() async {
     final selected = await showModalBottomSheet<Locale>(
       context: context,
-      backgroundColor: Colors.transparent,
+      backgroundColor: AppColors.transparent,
       showDragHandle: false,
       builder: (_) =>
           _LanguageSheet(selected: context.read<LocaleController>().locale),