style(app): 格式化并拆分长函数

lib/app.dart

@@ -146,7 +146,8 @@ class _LumaDramaAppState extends State<LumaDramaApp> {
   );
 
   late final CommerceRepository _commerceRepository =
-      widget.commerceRepository ?? HttpCommerceRepository(CommerceApi(_apiClient));
+      widget.commerceRepository ??
+      HttpCommerceRepository(CommerceApi(_apiClient));
 
   late final WalletController _walletController = WalletController(
     _commerceRepository,