add telegram link

lib/pages/settings/about.dart

@@ -68,6 +68,13 @@ class _AboutSettingsState extends State<AboutSettings> {
             launchUrlString("https://github.com/venera-app/venera");
           },
         ).toSliver(),
+        ListTile(
+          title: const Text("Telegram"),
+          trailing: const Icon(Icons.open_in_new),
+          onTap: () {
+            launchUrlString("https://t.me/venera_release");
+          },
+        ).toSliver(),
       ],
     );
   }