When audio sharing is enabled, screen sharing breaks.

### Steps to reproduce

1. Where are you starting? What can you see?
When I am going through the prompt to begin sharing my screen, I go to the "Entire Screen" section and enable the "Also share system audio" setting. Once I click on the screen I want to share, I press the "Share" button.

3. What do you click?
Explained above.

5. More steps…
N/A

### Outcome

#### What did you expect?
I expceted to share my screen, but alongside that, the viewers of my screensharing will also be able to hear the audio. (Except for me, of course.)

#### What happened instead?
The screen sharing immediately stopped after being started.

Additional notes: This is in a private space, and this is in a video call, if it helps narrow this problem down.

### Operating system

Windows

### Browser information

Chrome 134.0.6998.89

### URL for webapp

https://app.element.io/#/room/!FeKzabBGKTmCpVQIwj:matrix.org

### Application version

1.11.95

### Homeserver

matrix.org

### Will you send logs?

Yes