fix reconnection event

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

@@ -425,7 +425,8 @@ class StreamChatClient {
       online: status == ConnectionStatus.connected,
     ));
 
-    if (currentState == ConnectionStatus.connected) {
+    if (currentState == ConnectionStatus.connected &&
+        previousState != ConnectionStatus.connected) {
       // connection recovered
       final cids = state.channels.keys.toList(growable: false);
       if (cids.isNotEmpty) {
@@ -437,14 +438,12 @@ class StreamChatClient {
           await sync(cids: cids, lastSyncAt: _lastSyncedAt);
         }
       }
-      if (previousState != ConnectionStatus.connected) {
       handleEvent(Event(
         type: EventType.connectionRecovered,
         online: true,
       ));
     }
   }
-  }
 
   /// Stream of [Event] coming from [_ws] connection
   /// Pass an eventType as parameter in order to filter just a type of event