Add button to change camera facing mode with mobile devices

[AurimasG12]

Describe the problem

I would like to be able to change camera facing mode by clicking on button. Now the only way to change facing mode is via device selector dropdown, but iphone has like five back cameras and one front.

Describe the proposed solution

Adding a facing mode swap button will improve UX.

Alternatives considered

No response

Importance

I cannot use LiveKit without it

Additional Information

No response