Consider how to better display users with their camera disabled

### Your use case

@kongo09:

> [hot] - I think we need to find an alternative way to display people with their video disabled. All these black boxes just make the overall impression bad.

In a 1:1 - suggested it being a setting, as people only care about people they can see. Standard in Zoom. We should benchmark.

Priority tbd.

### Have you considered any alternatives?

_No response_

### Additional context

_No response_

No files, tests, or entry points are named. Start by locating the current participant rendering for users with video disabled, then review the 1:1 setting proposal and benchmark the Zoom behavior mentioned in the issue. Done means agreeing on and implementing a better presentation than black boxes, including the proposed 1:1 preference.

Written by the indexing model from the issue text.