Left-menu should follow your finger as you swipe
Currently the left-menu on mobile is swipable to expand/collapse(show/hide) the left-menu but it gives no indication as you do the swipe gesture.
There is a CSS animation as it opens but this only occurs after you do a swipe gesture to trigger it.
This was done because the hammerjs
library doesn't have a way for us to get the delta as a swipe gesture is occurring. We probably just need to switch libraries
Fix
Make the left-menu follow your finger as you swipe (like native menus)