fixed add keyboard

public/js/client.js

@@ -46,7 +46,7 @@ $('#new-keyboard').click(function() {
   var newSlide ='<div class = "custom swiper-slide swiper-slide-inner" id="custom-' + customCount.toString() + '">  </div>';
   customCount++;
   swiperInner.appendSlide(newSlide)
-  swiper.slideTo(3, 200, false);
+  swiper.slideTo(4, 200, false);
   swiperInner.slideTo(customCount-1, 200, false);
   customButtonCounts['custom-' + swiperInner.activeIndex.toString()] = 0
   socket.emit('newBoard', {