audio call: loudspeaker toggle has invalid background color (reversed)

### Steps to reproduce

The sound source chooser / loudspeaker toggle (the same one which is mentioned in #7327 and visible on video recording) is inversely colored.

### Outcome

#### What did you expect?
ON toggle (white background color) should indicate loudspeaker on
When switched to headphones, wite color of headphone icons background should be used.

#### What happened instead?
ON toggle (white background color) indicates loudspeaker off.
When switched to headphones, gray color of headphone icons background is used.

### Your phone model

iPhoneX

### Operating system version

16.2

### Application version

1.9.15

### Homeserver

_No response_

### Will you send logs?

No