Audio of Participant is played back to themselves and not to experimenter

[NCEghtebas]

Currently, when a participant joins, regardless of if they are muted or not, they hear their own audio which is disorienting. When the experiment is ended, they still hear themselves and also the video stream still transmits (different but related issue). The audio is recorded even if the participant is muted.

The expected behavior should be

• participants do not hear themselves in the tab
• The experimenter hears participants in the lobby and in the meeting room.
• The participant info tab sends the correct call to mute /unmute audio (See Issue Participant Info Tab Always Mutes but never unmutes #270
• When the audio is muted, the participants audio should not be recorded.

[NCEghtebas]

@MEnesDeniz and I checked to see if the merged changes from PR #183 and PR #184 are still there in development but it seems they are despite this fixed functionality no longer working.

The branch usability-user-study does not seem to have this issue.... we think it might be introduced through the introduction of canvas ids #258