Issue in stopScroll timeout

[pat-flew]

I stumbled on an issue where the scroller will stop scrolling midway during a scroll. This would happen occasionally if the user was calling scrollToY repeatedly. I haven't checked other cases.

This line was the cause of the issue:

setTimeout(stopScroll, 99) // with cooldown time

The timeout in some cases did not fire until after another scroll had been started.

I was able to address by saving the timeout id and clearing if set at the start of scrollToY