it also adds the tabIndex: -1 on the cell which was mentioned in the issue and it seems to work the same as Ag-Grid does, with keyboard navigation so it looks ok to me
fixes #518 (but maybe just partially, I'm not sure since I'm a newbie with these accessibility stuff and nobody wants to help much so... pushing this PR and closing the ref issue)
tabIndex: -1on the cell which was mentioned in the issue and it seems to work the same as Ag-Grid does, with keyboard navigation so it looks ok to me