As explained in #11143, disabling audio filters is desired in some scenarios.
This basically adds an option for user to disable default constraints.
When user doesn't change this value in Settings > Application, the default
value for each audio constraints is retrieved from settings.yml.
When user changes this value in Settings > Application, audio
filters (AGC, Noise Supression and Echo Cancellation) are all set to
true/false, according to the value selected in the Settings GUI.

To start it simple, we decided to not to add a different setting in the GUI for
each audio contraint. This may be added in the future, though (perhaps in a
dedicated Audio Settings tab)
This is related to #4873

Only publish full users to client side, no dummy users

Prevent open text-area blocking select menus

Improves the end meeting confirmation message

Presenter selecting a random viewer

adds missing custom parameters specs to the custom parameters test suite

Fixes crash when presenter is kicked

Fixes closed captions language list

Fix fetch loop when override / fallback locales set with region

Fix the issue with connectionStatus resulting in no users being availble to randomly pick from (select random viewer feature)

Rename GoupChatMsg.scala to GroupChatMsg.scala

Remove mountModal requirement in presentation uploader

Temporarily allow undefined user name for offline chat sender

Remove duplicated html id video-modal-input

Correct path to silence.mp3

Ensure sorting has a fallback in case of undefined name

Update bigbluebutton-release

Updated axios to 0.21.1 to resolve vuln