- Add docs for `hover_popover_delay`.
- Set `hover_popover_delay` to `300` from `350` which matches [VSCode's
hover
delay](ed48873ba2/src/vs/editor/common/config/editorOptions.ts (L2219)).
Release Notes:
- Added `hover_popover_delay` to settings which determines time to wait
in milliseconds before showing the informational hover box.