no way show self camera view, once "always show" is toggled off

### Steps to reproduce

1. start a video call
2. long press self camera view
3. turn off "always show"

### Outcome

#### What did you expect?

An easy way to enable self view back.

#### What happened instead?

I don't see myself more!

### Your phone model

_No response_

### Operating system version

_No response_

### Application version and app store

0.7.3

### Homeserver

_No response_

### Will you send logs?

No

### Are you willing to provide a PR?

No

No file or test is named. Reproduce the issue in a video call on application version 0.7.3 by disabling “always show” for the self camera view, then trace the self-view controls and their state transitions. Done means there is an easy, working way to enable self view again after it has been hidden.

Written by the indexing model from the issue text.