scrollbar style is not right

[drafish]

This issue not just happen in my mirror site, but also in the official site.

I think it is caused by scrollbar-width: thin;. It go back to normal when I remove this style.

Check the code here -- https://github.com/ethereum/remix-project/blob/master/libs/remix-ui/grid-view/src/lib/remix-ui-grid-section.css#L24

@LianaHus