feat: Propagate user profile updates to group member details and remove trip code sharing UI.

lib/blocs/user/user_bloc.dart

@@ -1,6 +1,8 @@
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:firebase_auth/firebase_auth.dart';
 import 'package:cloud_firestore/cloud_firestore.dart';
+
+import 'package:travel_mate/repositories/group_repository.dart';
 import 'package:travel_mate/services/notification_service.dart';
 import 'package:travel_mate/services/logger_service.dart';
 import 'package:travel_mate/services/error_service.dart';
@@ -19,6 +21,8 @@ class UserBloc extends Bloc<event.UserEvent, state.UserState> {
   /// Firestore instance for user data operations.
   final FirebaseFirestore _firestore = FirebaseFirestore.instance;
 
+  final GroupRepository _groupRepository = GroupRepository();
+
   final _errorService = ErrorService();
 
   /// Creates a new [UserBloc] with initial state.
@@ -164,6 +168,16 @@ class UserBloc extends Bloc<event.UserEvent, state.UserState> {
         });
 
         emit(state.UserLoaded(updatedUser));
+
+        // Propager les changements aux groupes
+        await _groupRepository.updateMemberDetails(
+          userId: currentUser.id,
+          firstName: event
+              .userData['prenom'], // 'prenom' dans Firestore map map to firstName usually? Wait, UserModel has prenom/nom.
+          lastName: event.userData['nom'],
+          profilePictureUrl: event
+              .userData['profilePictureUrl'], // Key was 'profilePictureUrl' in ProfileContent
+        );
       } catch (e, stackTrace) {
         _errorService.logError(
           'UserBloc',