Implement IOScrollbar for infinite scroll
In order to have an otherwise impossible to handle scrollbar for the infinite scroll, and also to reduce the scope of the infinite scroll list review, I've created a new
IOScrollbar component to match Infinites Scroll design.
The infinite scroll demo was using a fake element with a fixed width, an overflow scroll, and a potentially infinite height to create and simulate the same kind of browser behavior.
That was very hacky, hard to style (accordingly to our UI design), and less under our control in terms of cross browser behavior and triggered events, which is why I've implemented this component.