Scrolling no longer works

With one of the more recent updates to the ChatGPT web UI, you somehow managed to break all support for cursor keys.

I can scroll with the mouse wheel, but scrolling with cursor keys or page up/down and (especially) the home/end keys, no longer works.

These are standard features that should work in any web UI, anything with a scrollbar on it should support scrolling by any standard OS means.

Please get that fixed.