refactoring for recipient addition page

frontend/pweb/lib/pages/address_book/page/recipient/payment_row.dart

@@ -3,14 +3,13 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import 'package:pshared/models/recipient/recipient.dart';
-import 'package:pshared/provider/organizations.dart';
-import 'package:pshared/provider/recipient/pmethods.dart';
+import 'package:pshared/provider/recipient/methods_cache.dart';
 
 import 'package:pweb/pages/address_book/page/recipient/info_row.dart';
 import 'package:pweb/utils/payment/label.dart';
 
 
-class RecipientPaymentRow extends StatefulWidget {
+class RecipientPaymentRow extends StatelessWidget {
   final Recipient recipient;
   final double spacing;
 
@@ -20,40 +19,19 @@ class RecipientPaymentRow extends StatefulWidget {
     this.spacing = 18
   });
 
-  @override
-  State<RecipientPaymentRow> createState() => _RecipientPaymentRowState();
-}
-
-class _RecipientPaymentRowState extends State<RecipientPaymentRow> {
-  late final PaymentMethodsProvider _methodsProvider;
-
-  @override
-  void initState() {
-    super.initState();
-    _methodsProvider = PaymentMethodsProvider()
-      ..addListener(_onProviderChanged)
-      ..loadMethods(
-        context.read<OrganizationsProvider>(), 
-        widget.recipient.id,
-      );
-  }
-
-  @override
-  void dispose() {
-    _methodsProvider.removeListener(_onProviderChanged);
-    _methodsProvider.dispose();
-    super.dispose();
-  }
-
-  void _onProviderChanged() => setState(() {});
-
   @override
   Widget build(BuildContext context) {
-    if (!_methodsProvider.isReady) return const Center(child: CircularProgressIndicator());
+    final cacheProvider = context.watch<RecipientMethodsCacheProvider>();
+    final recipientId = recipient.id;
+    final isLoading = cacheProvider.isLoadingFor(recipientId);
+
+    if (isLoading && !cacheProvider.hasMethodsFor(recipientId)) {
+      return const Center(child: CircularProgressIndicator());
+    }
 
     return Row(
-      spacing: widget.spacing,
-      children: _methodsProvider.methods.map((m) => RecipientAddressBookInfoRow(
+      spacing: spacing,
+      children: cacheProvider.methodsForRecipient(recipientId).map((m) => RecipientAddressBookInfoRow(
         type: m.type,
         value: getPaymentTypeDescription(context, m),
       )).toList(),