fix: lan discovery (#11592)

Signed-off-by: fufesou <linlong1266@gmail.com>

flutter/lib/common/widgets/peers_view.dart

@@ -501,6 +501,7 @@ class DiscoveredPeersView extends BasePeersView {
   Widget build(BuildContext context) {
     final widget = super.build(context);
     bind.mainLoadLanPeers();
+    bind.mainDiscover();
     return widget;
   }
 }