[a11y] Some hidden UI element are still visible to the screen reader

### Steps to reproduce

1. On an Android device enable the screen reader
2. Run Element X Android (there is maybe the same problem on iOS, I did not check)
3. Start a Call
4. Navigate using the accessibility gesture through the screen

### Outcome

#### What did you expect?

Invisible element are not focusable by the screen reader

#### What happened instead?

hidden element can be focused by the screen reader.

And others:
"Spotlight"

"Grid"

6. Additionally a label is missing for the mute icon

7. And when opening the settings, the focus does not change and user can still navigate on the item below:

### Operating system

Android (and maybe iOS and web)

### Browser information

_No response_

### URL for webapp

_No response_

### Will you send logs?

No