_smoothScroll seems to occur more than once per frame #5036
Description
Repro:
Enable smooth scroll
Add content to terminal
Scroll
Most/all of these animation frames are _smoothScroll firing due to https://github.com/Tyriar/xterm.js/blob/8458bb4c4f4b8b3cf1d4a7207e0d47b13d17260c/src/browser/Viewport.ts#L214
