refactor: 重构弹窗组件支持自定义图标组件

apps/lib/features/settings/presentation/screens/settings_screen.dart

@@ -4,6 +4,7 @@ import '../../../../l10n/app_localizations.dart';
 import '../../../../core/logging/logger.dart';
 import '../../../../shared/theme/design_tokens.dart';
 import '../../../../shared/widgets/app_modal_dialog.dart';
+import '../../../../shared/widgets/gua_icon.dart';
 import '../../../../shared/widgets/toast/toast.dart';
 import '../../../../shared/widgets/toast/toast_type.dart';
 import '../../data/models/profile_settings.dart';
@@ -40,7 +41,6 @@ class SettingsScreen extends StatefulWidget {
 class _SettingsScreenState extends State<SettingsScreen> {
   final Logger _logger = getLogger('features.settings.settings_screen');
   late ProfileSettingsV1 _settings;
-  bool _isLoggingOut = false;
 
   @override
   void initState() {
@@ -114,7 +114,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
           ),
           const SizedBox(height: AppSpacing.xl),
           FilledButton(
-            onPressed: _isLoggingOut ? null : _confirmLogout,
+            onPressed: _confirmLogout,
             style: FilledButton.styleFrom(
               elevation: 0,
               backgroundColor: colors.error,
@@ -208,7 +208,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
         return AppModalDialog(
           title: l10n.settingsLogoutDialogTitle,
           message: l10n.settingsLogoutDialogBody,
-          icon: Icons.logout_rounded,
+          iconWidget: const GuaIcon(),
           actions: [
             AppModalDialogAction(
               label: l10n.settingsCancel,
@@ -228,21 +228,10 @@ class _SettingsScreenState extends State<SettingsScreen> {
       return;
     }
 
-    setState(() {
-      _isLoggingOut = true;
-    });
-    try {
-      await widget.onLogout();
-      if (!mounted) {
-        return;
-      }
-      Navigator.of(context).popUntil((route) => route.isFirst);
-    } finally {
-      if (mounted) {
-        setState(() {
-          _isLoggingOut = false;
-        });
-      }
+    await widget.onLogout();
+    if (!mounted) {
+      return;
     }
+    Navigator.of(context).popUntil((route) => route.isFirst);
   }
 }