[DataGrid] Improve keyboard navigation based on the ARIA spec

[arminmeh]

Summary

Data grid already supports keyboard interaction, which is aligned with the grid keyboard interaction ARIA specs, but it is not aligned with the ARIA specs for the treegrid

Among other things, data tree grid is missing expand/collapse control via arrow keys

From the spec

Right Arrow:
If focus is on a collapsed row, expands the row.
If focus is on an expanded row or is on a row that does not have child rows, moves focus to the first cell in the row.
If focus is on the right-most cell in a row, focus does not move.
If focus is on any other cell, moves focus one cell to the right.
Left Arrow:
If focus is on an expanded row, collapses the row.
If focus is on a collapsed row or on a row that does not have child rows, focus does not move.
If focus is on the first cell in a row and row focus is supported, moves focus to the row.
If focus is on the first cell in a row and row focus is not supported, focus does not move.
If focus is on any other cell, moves focus one cell to the left.

Similar ticket for tree view: #12654

Search keywords: accessibility, keyboard, aria