fix(flutter): 修复下拉刷新页面跟随

lib/pages/wallet/wallet_page.dart

@@ -120,7 +120,7 @@ class _WalletPageState extends State<WalletPage> {
     return AppPullToRefresh(
       onRefresh: wallet.load,
       child: ListView(
-        physics: const AlwaysScrollableScrollPhysics(),
+        physics: AppPullToRefresh.physics,
         padding: const EdgeInsets.fromLTRB(16, 8, 16, 28),
         children: [
           _BalanceHero(wallet: snapshot.wallet),