feat(visitors): Handles live conference and queue service. (#14869)
* feat(visitors): Handling of live conference and queue service.
* squash: Small refactor mobile code.
* squash: Drop debug log.
* chore(deps) lib-jitsi-meet@latest
https://github.com/jitsi/lib-jitsi-meet/compare/v1836.0.0+d05325f3...v1839.0.0+ea523fc6
* squash: Adds a count function.
* squash: Drop debug print.
* squash: Skip if queueService is not enabled.
* squash: Avoids double subscribing for visitorsWaiting.
* squash: Fixes lint error.
* squash: Fixes showing dialog.
feat(RN): add a fatal error state which is a catch all
Adds a fatal error state on which will depend whether or not the reload
screen is to be displayed. It is to happen when a relevant fatal error
action is not claimed by any feature for error recovery (the recoverable
flag is not set).