Added Localizations and ran small fixes

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

@@ -3,8 +3,8 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import 'package:pshared/models/recipient/recipient.dart';
-
 import 'package:pshared/models/recipient/filter.dart';
+
 import 'package:pweb/pages/address_book/page/filter_button.dart';
 import 'package:pweb/pages/address_book/page/header.dart';
 import 'package:pweb/pages/address_book/page/list.dart';
@@ -14,7 +14,7 @@ import 'package:pweb/providers/recipient.dart';
 import 'package:pweb/generated/i18n/app_localizations.dart';
 
 
-class RecipientAddressBookPage extends StatelessWidget {
+class RecipientAddressBookPage extends StatefulWidget {
   final ValueChanged<Recipient> onRecipientSelected;
   final VoidCallback onAddRecipient;
   final ValueChanged<Recipient>? onEditRecipient;
@@ -31,32 +31,65 @@ class RecipientAddressBookPage extends StatelessWidget {
   static const double _bigBox = 30;
   static const double _smallBox = 20;
 
+  @override
+  State<RecipientAddressBookPage> createState() => _RecipientAddressBookPageState();
+}
+
+class _RecipientAddressBookPageState extends State<RecipientAddressBookPage> {
+  late final TextEditingController _searchController;
+  late final FocusNode _searchFocusNode;
+
+  @override
+  void initState() {
+    super.initState();
+    final provider = context.read<RecipientProvider>();
+    _searchController = TextEditingController(text: provider.query);
+    _searchFocusNode = FocusNode();
+  }
+
+  @override
+  void dispose() {
+    _searchController.dispose();
+    _searchFocusNode.dispose();
+    super.dispose();
+  }
+
+  void _syncSearchField(RecipientProvider provider) {
+    final query = provider.query;
+    if (_searchController.text == query) return;
+
+    _searchController.value = TextEditingValue(
+      text: query,
+      selection: TextSelection.collapsed(offset: query.length),
+    );
+  }
 
   @override
   Widget build(BuildContext context) {
     
     final loc = AppLocalizations.of(context)!;
     final provider = context.watch<RecipientProvider>(); 
+    _syncSearchField(provider);
 
     if (provider.isLoading) {
-      return const Center(child: CircularProgressIndicator()); //TODO This should be in the provider
+      return const Center(child: CircularProgressIndicator());
     }
 
     if (provider.error != null) {
-      return Center(child: Text('Error: ${provider.error}'));
+      return Center(child: Text(loc.notificationError(provider.error ?? loc.noErrorInformation)));
     }
 
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
-        RecipientAddressBookHeader(onAddRecipient: onAddRecipient),
-        const SizedBox(height: _smallBox),
+        RecipientAddressBookHeader(onAddRecipient: widget.onAddRecipient),
+        const SizedBox(height: RecipientAddressBookPage._smallBox),
         RecipientSearchField(
-          controller: TextEditingController(text: provider.query),
-          focusNode: FocusNode(),
+          controller: _searchController,
+          focusNode: _searchFocusNode,
           onChanged: provider.setQuery,
         ),
-        const SizedBox(height: _bigBox),
+        const SizedBox(height: RecipientAddressBookPage._bigBox),
         Row(
           children: [
             RecipientFilterButton(
@@ -86,17 +119,17 @@ class RecipientAddressBookPage extends StatelessWidget {
           ],
         ),
         SizedBox(
-          height: _expandedHeight,
+          height: RecipientAddressBookPage._expandedHeight,
           child: Padding(
-            padding: const EdgeInsets.all(_paddingAll),
+            padding: const EdgeInsets.all(RecipientAddressBookPage._paddingAll),
             child: RecipientAddressBookList(
               filteredRecipients: provider.filteredRecipients,
-              onEdit: (recipient) => onEditRecipient?.call(recipient),
-              onSelected: onRecipientSelected,
+              onEdit: (recipient) => widget.onEditRecipient?.call(recipient),
+              onSelected: widget.onRecipientSelected,
             ),
           ),
         ),
       ],
     );
   }
-}
+}