[Bug] [TreeList] TreeList does not support keyboard navigation for column menus

[iadnonov]

I'm submitting a...

• Bug report

Current behavior

The TreeList does not support keyboard navigation for column menus.

Expected behavior

The TreeList does have to support keyboard navigation for column menus similar to the Grid.

Minimal reproduction of the problem with instructions

1. Open the following example https://stackblitz.com/edit/react-fkitaf-hy5uy8?file=app%2Fapp.tsx
2. Navigate to column menu header
3. Press Alt + Down

Reported in Ticket: 1665460