Added Last Name display and made it editable

frontend/pweb/lib/pages/settings/profile/account/name/name.dart

@@ -17,16 +17,20 @@ class _AccountNameConstants {
 }
 
 class AccountName extends StatelessWidget {
-  final String name;
+  final String firstName;
+  final String lastName;
   final String title;
   final String hintText;
+  final String lastNameHint;
   final String errorText;
 
   const AccountName({
     super.key,
-    required this.name,
+    required this.firstName,
+    required this.lastName,
     required this.title,
     required this.hintText,
+    required this.lastNameHint,
     required this.errorText,
   });
 
@@ -34,12 +38,14 @@ class AccountName extends StatelessWidget {
   Widget build(BuildContext context) {
     return ChangeNotifierProvider(
       create: (ctx) => AccountNameState(
-        initialName: name,
+        initialFirstName: firstName,
+        initialLastName: lastName,
         errorMessage: errorText,
         accountProvider: ctx.read<AccountProvider>(),
       ),
       child: _AccountNameBody(
         hintText: hintText,
+        lastNameHint: lastNameHint,
       ),
     );
   }
@@ -48,9 +54,11 @@ class AccountName extends StatelessWidget {
 class _AccountNameBody extends StatelessWidget {
   const _AccountNameBody({
     required this.hintText,
+    required this.lastNameHint,
   });
 
   final String hintText;
+  final String lastNameHint;
 
   @override
   Widget build(BuildContext context) {
@@ -58,8 +66,9 @@ class _AccountNameBody extends StatelessWidget {
     final provider = context.watch<AccountProvider>();
     final theme = Theme.of(context);
 
-    final currentName = provider.account?.name ?? state.initialName;
-    state.syncName(currentName);
+    final currentFirstName = provider.account?.name ?? state.initialFirstName;
+    final currentLastName = provider.account?.lastName ?? state.initialLastName;
+    state.syncNames(currentFirstName, currentLastName);
 
     return Column(
       mainAxisSize: MainAxisSize.min,
@@ -69,6 +78,7 @@ class _AccountNameBody extends StatelessWidget {
           children: [
             AccountNameText(
               hintText: hintText,
+              lastNameHint: lastNameHint,
               inputWidth: _AccountNameConstants.inputWidth,
               borderWidth: _AccountNameConstants.borderWidth,
             ),