Top Up Balance logic and Added fixes for routing

frontend/pweb/lib/pages/dashboard/buttons/balance/balance.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 
 import 'package:provider/provider.dart';
 
+import 'package:pweb/models/wallet.dart';
 import 'package:pweb/pages/dashboard/buttons/balance/carousel.dart';
 import 'package:pweb/providers/wallets.dart';
 
@@ -9,7 +10,9 @@ import 'package:pweb/generated/i18n/app_localizations.dart';
 
 
 class BalanceWidget extends StatelessWidget {
-  const BalanceWidget({super.key});
+  final ValueChanged<Wallet> onTopUp;
+
+  const BalanceWidget({super.key, required this.onTopUp});
 
   @override
   Widget build(BuildContext context) {
@@ -30,6 +33,7 @@ class BalanceWidget extends StatelessWidget {
       WalletCarousel(
         wallets: wallets,
         onWalletChanged: walletsProvider.selectWallet,
+        onTopUp: onTopUp,
       );
   }
 }