[Mover] Keyboard arrow navigation doesn't work for RTL grid layout

[OVBondHUB]

Hello folks, there is an issue with keyboard arrow navigation on RTL grid. Left & Right arrows don't work on keyDown. Up & Down work fine.

version: "tabster": "^6.0.0"

There is a demo:
https://react.fluentui.dev/?path=/docs/utilities-focus-management-usearrownavigationgroup--default&globals=storybook_fluentui-react-addon_dir:rtl

tabster.mov

[bsunderhus]

Hey there @OVBondHUB, since you're providing a FluentUI v9 example, instead of just tabster code, I'd recommend you open this issue in the Fluent Repo (https://github.com/microsoft/fluentui/issues).

There are extra logic layers provided by Fluent that might be responsible for this erroneous behavior