Option to let webplatform take over the audio from headsets

[tungnguyen2046]

Feature Request

Checklist

• Do you want to make a PR for this?
• Have you discussed this feature with the team?
• Is there a related issue or feature request?
• Do you have any mockups or designs for this feature?

Description

An option in the .env file to toggle the --no-audio flag (should be --no-audio by default).

Why is this needed?

For showcasing or presenting purposes, in which scenario we're only using one headset at that time. In a big meeting room that has a lot of people, it's better to broadcast the audio to the sound system of the TV/projector so everybody can hear what is going on in the headset.