accessibilitybughelp wanted
描述
Expected Behavior
When navigating through the video controls with the keyboard the focus indicator should be visible.
Actual Behavior
The focus indicator is not visible
URL, screen shot, or Codepen exhibiting the issue
This can be seen in the Video/Theater mode story https://storybook.grommet.io/?path=/story/media-video-theater-mode--customizable-controls

Steps to Reproduce
- Go to https://storybook.grommet.io/?path=/story/media-video-theater-mode--customizable-controls
- Navigate to the controls menu with the keyboard and open it
- Navigate within the controls menu with the keyboard and the focus indicator is not visible
Your Environment
- Grommet version: 2.22.0
- Browser Name and version: chrome
- Operating System and version (desktop or mobile):