refactor of money utils with new money2 package

frontend/pshared/lib/models/wallet/asset.dart

@@ -1,12 +1,14 @@
-import 'package:pshared/models/wallet/chain_asset.dart';
+import 'package:pshared/models/payment/chain_network.dart';
 
 
-class WalletAsset extends ChainAsset {
+class WalletAsset {
+  final ChainNetwork chain;
+  final String tokenSymbol;
   final String contractAddress;
 
   const WalletAsset({
-    required super.chain,
-    required super.tokenSymbol,
+    required this.chain,
+    required this.tokenSymbol,
     required this.contractAddress,
   });
 }

frontend/pshared/lib/models/wallet/balance.dart

@@ -1,4 +1,4 @@
-import 'package:pshared/models/money.dart';
+import 'package:money2/money2.dart';
 
 
 class WalletBalance {

frontend/pshared/lib/models/wallet/chain_asset.dart

@@ -1,12 +0,0 @@
-import 'package:pshared/models/payment/chain_network.dart';
-
-
-class ChainAsset {
-  final ChainNetwork chain;
-  final String tokenSymbol;
-
-  const ChainAsset({
-    required this.chain,
-    required this.tokenSymbol,
-  });
-}

frontend/pshared/lib/models/wallet/wallet.dart

@@ -1,5 +1,5 @@
 import 'package:pshared/models/describable.dart';
-import 'package:pshared/models/money.dart';
+import 'package:money2/money2.dart';
 import 'package:pshared/models/wallet/asset.dart';
 import 'package:pshared/models/wallet/balance.dart';
 
@@ -39,9 +39,7 @@ class WalletModel implements Describable {
     required this.describable,
   });
 
-  WalletModel copyWith({
-    Describable? describable,
-  }) => WalletModel(
+  WalletModel copyWith({Describable? describable}) => WalletModel(
     walletRef: walletRef,
     organizationRef: organizationRef,
     ownerRef: ownerRef,