codeintel: Delay hiding the popover

Created by: chrismwendt

yarn upgrade @sourcegraph/codeintellify 7.4.0

Brings in https://github.com/sourcegraph/codeintellify/pull/418

Fixes papercuts:

• https://github.com/sourcegraph/sourcegraph/discussions/23485?sort=top#discussioncomment-1124902
• https://github.com/sourcegraph/sourcegraph/discussions/24905?sort=top#discussioncomment-1320529
• https://github.com/sourcegraph/sourcegraph/issues/17065