fix event

packages/stream_chat/lib/src/models/event.dart

@@ -88,7 +88,8 @@ class Event {
   final String? parentId;
 
   /// True if the event is generated by this client
-  late final bool isLocal;
+  @JsonKey(defaultValue: false)
+  bool isLocal;
 
   /// Map of custom channel extraData
   @JsonKey(includeIfNull: false)

packages/stream_chat/lib/src/models/event.g.dart

@@ -39,7 +39,7 @@ Event _$EventFromJson(Map<String, dynamic> json) {
     channelType: json['channel_type'] as String?,
     parentId: json['parent_id'] as String?,
     extraData: json['extra_data'] as Map<String, dynamic>?,
-  )..isLocal = json['is_local'] as bool?;
+  )..isLocal = json['is_local'] as bool? ?? false;
 }
 
 Map<String, dynamic> _$EventToJson(Event instance) {