* feat: Updates userRegion from backend.

* squash: Update comment.

* squash: Fix options.

* feat(subject): Avoids setting subject if already set.

* squash: fix comments.

* squash: fix comments.

Avoid duplicates.

* fix(transcriptions): Fixes transcription status, going offline.

* squash: Fixes undefined error.

* feat(silent): track if participant joined without audio

* Fix failing tests, use jitsi.org namespace

---------

Co-authored-by: Дамян Минков <damencho@jitsi.org>

* Revert "fix: Sends conference requests on retries of errors."

Seems we are sending two conference requests in the happy path.

This reverts commit 86e2fb2bed.

* fix: Sends conference requests on retries of errors.

This changes the behavior of retires when Room creation restricted error is received, we will always send the conference request to jicofo when retrying.
Also, after error for password protected rooms and providing password, a conference request was not send which can result jicofo left the room and error is received.

This changes the behavior of retires when Room creation restricted error is received, we will always send the conference request to jicofo when retrying.
Also, after error for password protected rooms and providing password, a conference request was not send which can result jicofo left the room and error is received.

The interval will be between 1.5 and 7.1 seconds.

Will not retry immediately but will slow down request between 1 and 3 seconds.

Adds the reason string to the event we fire.

Waits to check if lobby is already enabled, and if enabled ignore the request.

When a self presence is received ( from mute or something else) during
leave operation, after presence unavailable is sent and before the final
presence unavaliable is received, we were interpreting it as muc joined
since the joined flag was immediately set to false.

Fixes jitsi/jitsi-meet#13957.

It creates its own emitter now extending Listenable.

This is breaking xep-0045, but this is just between the client and prosody and will be added only when we send the initial conferenceIq via http.

* feat: Handles join error about required display name.

* squash: Fixes tests.

* squash: Adds param to DISPLAY_NAME_REQUIRED event indicating is it coming because of lobby.

* squash: Drops all clear up methods for unrecoverable errors.

The jitsi-meet part is taking care of it.

When receiving error like max occupants reached we have not joined the room, and there is no point of sending presence unavailable and check and clean after 5 secs.

* feat(visitors): Visitors chat.

For messages coming from visitors, which are not in the current room we need to supply a display name.
Mark messages with custom display name as coming from guest.

* feat: Adds a visitors version to conferenceIQ.

* ref: Inline onMucMemberLeft (has nothing to do with "moderator" and is broken).

* fix: Use isFocus instead of just reading the resource.

* ref: Inline onParticipantLeft.

* ref: Add _ to private function names.

* ref: Remove redundant function.

* ref: Initialize focusComponent once.

* ref: Remove two copies of "options".

* ref: Simplify the focusJid flow.

* ref: Rename focusCompoonent to targetJid.

* fix: Only retry on "invalid session" errors

We used to fire FOCUS_DISCONNECTED (which doesn't have anything to do
with anything disconnecting) and then retrying. This is not necessary
because FOCUS_DISCONNECTED is a fatal error and the client schedules
a reload of it's own (and we want the client reload as opposed to the
conference-request retry in case e.g. the shard has changed).

* ref: Remove use of visitorFocus.

* ref: Remove graceful shutdown handling (never used in backend).

* feat: Support conference request over HTTP.

* ref: eslint cleanup.

* fix: Add max timeout 2 minutes.

<iq id='some-id' from='focus.exmaple.com' type='error' xml:lang='en-US' to='some-jid' xmlns='jabber:client'>
    <error type='modify'>
        <redirect xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'/>
        <conference xmlns='http://jitsi.org/protocol/focus' vnode='v1' main-room='roomtest@conference.focus.exmaple.com' focusjid='focus@auth.meet.jitsi'/>
    </error>
</iq>

* Remove support for legacy endpoint based signaling and make source-name signaling as the only signaling mode. The legacy screensharing mode will no longer be supported. The client will still be able to process remote presence sent in the old format to support interop with very old mobile clients and jigasi that do not support source-name signaling.
* remove code related to presenter mode.

Avoid needing an external dependency.

Allows a moderator to end the conference for everyone.

Co-authored-by: Werner Fleischer <70745309+wernf@users.noreply.github.com>