Tweak coding style

Author: mihailik

src/input/ContentEditableInput.js

@@ -59,10 +59,10 @@ export default class ContentEditableInput {
       }
     })
 
-    var lastTouchStart;
+    var lastTouchStart
     on(div, "touchstart", function () {
       // do not force composition for double-tap, it breaks selection
-      if (lastTouchStart < +new Date() + DOUBLECLICK_DELAY) return
+      if (+new Date()  < lastTouchStart + 400) return
       lastTouchStart = +new Date()
 
       var startPos = cm.indexFromPos(cm.getCursor('from'))