Refactor ActivityCard UI and improve voting functionality

- Updated ActivityCard layout for better visual consistency and responsiveness.
- Simplified the category badge and adjusted styles for better readability.
- Enhanced the voting section with a progress bar and improved button designs.
- Added a new method in Activity model to check if all trip participants approved an activity.
- Improved error handling and validation in ActivityRepository for voting and fetching activities.
- Implemented pagination in ActivityPlacesService for activity searches.
- Removed outdated scripts for cleaning up duplicate images.

lib/blocs/activity/google_activities/google_activity_state.dart

@@ -0,0 +1,87 @@
+import 'package:equatable/equatable.dart';
+import '../../../models/activity.dart';
+
+/// States pour les activités Google Places
+abstract class GoogleActivityState extends Equatable {
+  const GoogleActivityState();
+
+  @override
+  List<Object?> get props => [];
+}
+
+/// État initial
+class GoogleActivityInitial extends GoogleActivityState {
+  const GoogleActivityInitial();
+}
+
+/// État de recherche
+class GoogleActivitySearching extends GoogleActivityState {
+  const GoogleActivitySearching();
+}
+
+/// État avec les activités Google chargées
+class GoogleActivityLoaded extends GoogleActivityState {
+  final List<Activity> googleActivities;
+  final String? nextPageToken;
+  final bool hasMoreData;
+  final String query;
+
+  const GoogleActivityLoaded({
+    required this.googleActivities,
+    this.nextPageToken,
+    required this.hasMoreData,
+    required this.query,
+  });
+
+  @override
+  List<Object?> get props => [googleActivities, nextPageToken, hasMoreData, query];
+
+  /// Créer une copie avec des modifications
+  GoogleActivityLoaded copyWith({
+    List<Activity>? googleActivities,
+    String? nextPageToken,
+    bool? hasMoreData,
+    String? query,
+  }) {
+    return GoogleActivityLoaded(
+      googleActivities: googleActivities ?? this.googleActivities,
+      nextPageToken: nextPageToken ?? this.nextPageToken,
+      hasMoreData: hasMoreData ?? this.hasMoreData,
+      query: query ?? this.query,
+    );
+  }
+}
+
+/// État de chargement de plus d'activités (pagination)
+class GoogleActivityLoadingMore extends GoogleActivityState {
+  final List<Activity> currentActivities;
+  final String query;
+
+  const GoogleActivityLoadingMore({
+    required this.currentActivities,
+    required this.query,
+  });
+
+  @override
+  List<Object?> get props => [currentActivities, query];
+}
+
+/// État de succès d'opération
+class GoogleActivityOperationSuccess extends GoogleActivityState {
+  final String message;
+
+  const GoogleActivityOperationSuccess(this.message);
+
+  @override
+  List<Object?> get props => [message];
+}
+
+/// État d'erreur
+class GoogleActivityError extends GoogleActivityState {
+  final String message;
+
+  const GoogleActivityError(this.message);
+
+  @override
+  List<Object?> get props => [message];
+}