Expected Behavior

The grey background on DataTable cells should either not be applied or it should move when a new row is focused

Actual Behavior

The grey background remains on the first row of the DataTable

URL, screen shot, or Codepen exhibiting the issue

https://storybook.grommet.io/?path=/story/visualizations-datatable-controlled--controlled-data-table

Steps to Reproduce

1. Use the keyboard to tab to the first row of the DataTable
2. Use the keyboard or the mouse to move to and select other DataTable rows
3. The grey background will still be applied to the first row

Your Environment

• Grommet version: 2.31.0 (I believe this issue originated in v2.23.0 of grommet)
• Browser Name and version: chrome
• Operating System and version (desktop or mobile):