Fix delete profile error

lib/controller.dart

@@ -102,6 +102,7 @@ class AppController {
         final updateId = config.profiles.first.id;
         changeProfile(updateId);
       } else {
+        changeProfile(null);
         updateStatus(false);
       }
     }

lib/fragments/about.dart

@@ -47,7 +47,7 @@ class AboutFragment extends StatelessWidget {
           title: const Text("Telegram"),
           onTap: () {
             globalState.openUrl(
-              "https://t.me/+G-veVtwBOl4wODc1",
+              "https://t.me/FlClash",
             );
           },
           trailing: const Icon(Icons.launch),