Difficult to scroll song table up or down while dragging

[derat]

While a row is being dragged in the song-table component, the table seems to only auto-scroll as long as the pointer is within the component (at least in Chrome). If you move the pointer above or below the component, scrolling stops.

I don't know how auto-scrolling is supposed to work. Maybe the current behavior is intentional to handle cases where the user is trying to drop the element somewhere else on the page outside of the scrollable element.

I didn't find anything definitive, but I think that these links have some related discussion:

• https://bugzilla.mozilla.org/show_bug.cgi?id=41708
• https://stackoverflow.com/questions/63909199/dragging-content-of-overflow-div-scrolls-in-both-safari-and-firefox-not-in-chro