fix: windows保存图片改成打开官网，gal有兼容

lib/app/modules/hi_anti_lost/controllers/hi_anti_lost_controller.dart

@@ -13,6 +13,19 @@ class HIAntiLostController extends GetxController {
   final GlobalKey repaintKey = GlobalKey();
 
   Future<void> saveImage() async {
+    if (Platform.isWindows) {
+      final Uri webUrl = Uri.parse('https://hifastvpn.com/');
+      try {
+        final ok =
+            await launchUrl(webUrl, mode: LaunchMode.externalApplication);
+        if (!ok) {
+          KRCommonUtil.kr_showToast("无法打开链接");
+        }
+      } catch (e) {
+        KRCommonUtil.kr_showToast("无法打开链接");
+      }
+      return;
+    }
     KRCommonUtil.kr_showLoading(message: "正在保存...");
     try {
       // Check permission