fix data send handle
fix data send handle

websocket에 보내는 데이터가 있는지 확인한 후 데이터를 보낸다.

songhagwon/entry-hw,kjsii123/entry-hw,entrylabs/entry-hw,songhagwon/entry-hw,entrylabs/entry-hw,kjsii123/entry-hw,entrylabs/entry-hw,songhagwon/entry-hw,songhagwon/entry-hw,kjsii123/entry-hw,entrylabs/entry-hw,songhagwon/entry-hw,entrylabs/entry-hw,kjsii123/entry-hw,entrylabs/entry-hw