[Bug][Grid] Grouping elements are not navigatable

[WissamProgress]

Describe the bug
The Chip component, and row that allows expanding/collapsing do not have the tabIndex property. It should be set to 0 to allow navigating to these elements.

To Reproduce
Open any Grid demo, and navigate using the Tab key
https://stackblitz.com/edit/vzbxph-rn7akd?file=src%2Fmain.vue

In the React Grid, you can navigate to these elements using either the Tab key or using the arrow keys when setting navigatable to true.

Expected behavior
It is possible to navigate to all the elements of the Grid.

Ticket ID: 1658098