minor updates

packages/stream_chat/lib/src/client/retry_queue.dart

@@ -118,6 +118,7 @@ class RetryQueue {
       } catch (e) {
         if (e is! StreamChatNetworkError || !e.isRetriable) {
           _messageQueue.removeMessage(message);
+          _sendFailedEvent(message);
           return true;
         }
         // retry logic

packages/stream_chat/lib/stream_chat.dart

@@ -7,6 +7,7 @@ export 'package:dio/src/options.dart';
 export 'package:dio/src/options.dart' show ProgressCallback;
 export 'package:logging/logging.dart' show Logger, Level;
 export 'package:rate_limiter/rate_limiter.dart';
+export 'package:uuid/uuid.dart';
 
 export './src/core/api/attachment_file_uploader.dart'
     show AttachmentFileUploader;