Make usePreventScroll publicly accessible

[rtcpw]

I have one page that always occupies the entire viewport. Imagine a Quasar-based image editor, a map, IDE, etc. I would like to prevent scrolling on this one page. Quasar already has a utility for this called usePreventScroll, used by QDialog, QDrawer, and Loading` plugin.

Would it be possible to make the usePreventScroll publicly accessible so we can use it for our own purposes?