PLT-6610 adding the view channel event as skippable (#6800)

app/web_conn.go

@@ -116,7 +116,9 @@ func (c *WebConn) WritePump() {
 			skipSend := false
 			if len(c.Send) >= SEND_SLOW_WARN {
 				// When the pump starts to get slow we'll drop non-critical messages
-				if msg.EventType() == model.WEBSOCKET_EVENT_TYPING || msg.EventType() == model.WEBSOCKET_EVENT_STATUS_CHANGE {
+				if msg.EventType() == model.WEBSOCKET_EVENT_TYPING ||
+					msg.EventType() == model.WEBSOCKET_EVENT_STATUS_CHANGE ||
+					msg.EventType() == model.WEBSOCKET_EVENT_CHANNEL_VIEWED {
 					l4g.Info(fmt.Sprintf("websocket.slow: dropping message userId=%v type=%v channelId=%v", c.UserId, msg.EventType(), evt.Broadcast.ChannelId))
 					skipSend = true
 				}