Scrolling on main window & playlist is too fast

I am on Windows 10 using Chrome.

I have noticed that scrolling on the main window has intention to change the volume. When I do this though, it's jumping to 0% or 100%.

A similar behaviour happens when I try and scroll the playlist. It scrolls very rapidly, tending towards the top or bottom.

I suspect the related code is:
```js
return dispatch(setVolume(currentVolume + e.deltaY));
```

Reproduce the issue in Windows 10 Chrome, then locate the volume handler containing `dispatch(setVolume(currentVolume + e.deltaY))` and the playlist scrolling handler. Compare both behaviors while scrolling; done means volume and playlist scrolling no longer jump rapidly toward 0%, 100%, the top, or the bottom.

Written by the indexing model from the issue text.