feat: Remove unused balance model import and add count bloc imports in create trip content

lib/blocs/count/count_bloc.dart

@@ -1,7 +1,6 @@
 import 'dart:async';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import '../../data/models/expense.dart';
-import '../../data/models/balance.dart';
 import '../../services/count_service.dart';
 import '../../repositories/count_repository.dart';
 import 'count_event.dart';

lib/components/home/create_trip_content.dart

@@ -9,6 +9,8 @@ import '../../blocs/trip/trip_event.dart';
 import '../../blocs/trip/trip_state.dart';
 import '../../blocs/group/group_bloc.dart';
 import '../../blocs/group/group_event.dart';
+import '../../blocs/count/count_bloc.dart';
+import '../../blocs/count/count_event.dart';
 import '../../data/models/group.dart';
 import '../../data/models/group_member.dart';
 import '../../services/user_service.dart';
@@ -570,7 +572,7 @@ class _CreateTripContentState extends State<CreateTripContent> {
       final group = Group(
         id: '', // Sera généré par Firestore
         name: _titleController.text.trim(),
-        tripId: tripId, // ✅ ID du voyage récupéré
+        tripId: tripId,
         createdBy: currentUser.id,
       );
 
@@ -589,11 +591,15 @@ class _CreateTripContentState extends State<CreateTripContent> {
             )),
       ];
 
+      // Créer le groupe
       context.read<GroupBloc>().add(CreateGroupWithMembers(
             group: group,
             members: groupMembers,
           ));
 
+      // ✅ AJOUT : Attendre un court instant pour que le groupe soit créé
+      await Future.delayed(const Duration(milliseconds: 500));
+
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
           SnackBar(