onScroll missing from main element

[andremarianiello]

I checked https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onscroll, and if I am reading it correctly, the onScroll property should part of the GlobalEvents type alias. Am I mistaken? I can make a PR if this is the case.

[garyb]

I looked into this a bit - you're right that it's missing from there, but it is present on many of the elements that it actually works for (since there are many that it doesn't do anything for). I'm not sure which way is better. 🙂