Fix .sendMessage return (#3612)

Fix sendMessage return

src/util/Injected/Utils.js

@@ -302,6 +302,9 @@ exports.LoadUtils = () => {
         }
 
         await window.Store.SendMessage.addAndSendMsgToChat(chat, message);
+        await window.Store.HistorySync.sendPeerDataOperationRequest(3, {
+            chatId: chat.id
+        });
         return window.Store.Msg.get(newMsgKey._serialized);
     };