feat: 为划转页面确认按钮添加图标

- 添加 LucideIcons.arrowRightLeft 图标到确认按钮
- 加载状态时自动隐藏图标
- 提升用户体验和视觉识别度

flutter_monisuo/build/web/flutter_bootstrap.js

@@ -37,6 +37,6 @@ _flutter.buildConfig = {"engineRevision":"e4b8dca3f1b4ede4c30371002441c88c12187e
 
 _flutter.loader.load({
   serviceWorkerSettings: {
-    serviceWorkerVersion: "1220207761" /* Flutter's service worker is deprecated and will be removed in a future Flutter release. */
+    serviceWorkerVersion: "2388525436" /* Flutter's service worker is deprecated and will be removed in a future Flutter release. */
   }
 });

flutter_monisuo/lib/ui/pages/asset/transfer_page.dart

@@ -212,6 +212,7 @@ class _TransferPageState extends State<TransferPage> {
                   width: double.infinity,
                   child: NeonButton(
                     text: _isLoading ? '处理中...' : '确认划转',
+                    icon: _isLoading ? null : LucideIcons.arrowRightLeft,
                     type: NeonButtonType.primary,
                     onPressed: _isLoading ? null : _doTransfer,
                     height: 52,