Fix extension list scrolling and add loading and empty states (#7782)

This PR fixes the scrolling of the extension list, as well as adds
various empty and loading states.

Release Notes:

- N/A

Marshall Bowers committed 2y ago

b14fbd4ddc2a35083925f605cf8367df0c065e2d

Parent: b47aff4

Committed by GitHub <noreply@github.com> on 2/14/2024, 5:47:58 PM