feat: add dynamic RTL switching function + readme

[karimlaham]

reference to issue:
#119

[predikament]

I think this is a fair request and I can see the usability, so I will bring it up and try to get this merged.

Cheers for creating the suggestion and PR, @karimlaham.

[Braggiouy]

I have tested this modification, and it functions as expected. The writing direction can be dynamically updated by invoking the updateRtl method. The video below demonstrates this change, featuring a simple call-to-action (CTA) that triggers the updateRtl method.

video.mov

When the document is set to RTL, but the spatial navigation's direction is not updated accordingly, the focus defaults to the leftmost element instead of following the proper RTL flow.

After invoking the updateRtl method, the focus behaves correctly, adhering to the expected RTL navigation pattern, without needing to re-initialize the SpatialNavigationService.

Looks good to me. Thanks, @karimlaham, for the suggestion and PR.

cc: @predikament

[predikament]

Changes merged - Cheers for the contribution @karimlaham.

We'll update #119 once the new version containing this change is released.