style(theme): 客户端切换深色视觉风格

lib/pages/wallet/wallet_page.dart

@@ -46,7 +46,7 @@ class _WalletPageState extends State<WalletPage> {
     final l10n = AppLocalizations.of(context)!;
     final wallet = context.watch<WalletController>();
     return Theme(
-      data: AppTheme.light(),
+      data: AppTheme.dark(),
       child: PlainPageScaffold(
         pageKey: const Key('wallet-page'),
         backKey: const Key('wallet-back'),