feat: Implement message management features including sending, deleting, updating, and reacting to messages

lib/components/group/group_content.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:travel_mate/components/error/error_content.dart';
+import 'package:travel_mate/components/group/chat_group_content.dart';
 import '../../blocs/user/user_bloc.dart';
 import '../../blocs/user/user_state.dart' as user_state;
 import '../../blocs/group/group_bloc.dart';
@@ -167,7 +168,6 @@ class _GroupContentState extends State<GroupContent> {
           ),
           const SizedBox(height: 24),
           
-          // IMPORTANT: Utiliser un simple Column au lieu de GridView pour tester
           ...groups.map((group) {
             return Padding(
               padding: const EdgeInsets.only(bottom: 12),
@@ -289,24 +289,13 @@ class _GroupContentState extends State<GroupContent> {
 
     void _openGroupChat(Group group) {
     try {
-      // Afficher juste un message, pas de navigation pour l'instant
-      if (mounted) {
-        ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(
-            content: Text('Chat: ${group.name} (${group.members.length} membres)'),
-            duration: const Duration(seconds: 2),
-          ),
-        );
-      }
-      
-      // TODO: Navigation vers la page de chat
-      // Navigator.push(
-      //   context,
-      //   MaterialPageRoute(
-      //     builder: (context) => GroupChatPage(group: group),
-      //   ),
-      // );
-      
+      // Navigation vers la page de chat
+      Navigator.push(
+        context,
+        MaterialPageRoute(
+          builder: (context) => ChatGroupContent(group: group),
+        ),
+      );
     } catch (e) {
       _buildErrorState(e.toString(), '', false);
     }