Subsequent attempts to join will show produce an error "[JitsiConference.js] : A coference with the same name has already been created!".

This avoids any PR to miss pushing the generated ts files.

* feat(multi-stream-support) Add the support for multiple local video streams.
This feature is behind 'sendMultipleVideoStreams' config.js flag and is currently supported only on clients running in Unified plan mode.

* squash: Use the track index from source name to find the matching transceiver on unmute.

Messaging methods in lobby room
getLocalId to get the local lobby room id from jid
setMessageListener to listen for messages in lobby room

Reviewed-by: Fecri Kaan Ulubey <f.kaan93@gmail.com>

ref(lobby chat) refactor lobby chat api to conform to other existing lib-jitsi-meet apis

* feat(multi-stream-support) Handle SDP munging for multiple local/remote streams/ep.
A new SDPSimulcast class is added for handling SDP munging for local and remote descriptions to handle multiple streams for both local and remote endpoints. This new class will be used only for unified plan implentation. The sdp-simucast npm package will be used for plan-b and deprecated later when all the clients switch to unified plan.

* fix(build) fix building with TS code

Use the Babel preset for the webpack bundle since Babel 7 already
understands TS and ts-loader uses tsc instead, which we configure
differently.

* squash: Add unit test and address review comments.

Co-authored-by: Saúl Ibarra Corretgé <saghul@jitsi.org>

When a user leaves, the ssrcs associated with the ep are removed from the remote description and a renegotiation is forced. The browser then fires 'removetrack' event on the associated MediaStream when sRD is called with ssrcs removed. The remote track is then disposed of in the event handler. Therefore, there is no need to delete the tracks at the TPC level before renegotiation. This also prevents the 'Removed track not found for stream' events from showing up in the browser console log.

Add the _onPrivateMessage handler when breakout_rooms is found in disco info.

Regression introduced in
5c9b905111

Do it on the prepack step, so it gets built before we upload the build
artifact.

Include a type comparison utility to compare auto-generated vs hand-crafted
types.

Thanks @sapkra for working on these! ❤️

This should allow us to monitor the progress when comparing them to hand-crafted
ones.

Emitting declarations generated these errors:

~~~~
modules/transcription/audioRecorder.js:3:1 - error TS9005: Declaration emit for this file requires using private name 'TrackRecorder'. An explicit type annotation may unblock declaration emit.

3 const RecordingResult = require('./recordingResult');
  ~~~~~

modules/transcription/recordingResult.js:13:1 - error TS9005: Declaration emit for this file requires using private name 'RecordingResult'. An explicit type annotation may unblock declaration emit.

13 const RecordingResult = function(blob, name, startTime, wordArray) {
   ~~~~~

modules/transcription/transcriber.js:1:1 - error TS9006: Declaration emit for this file requires using private name 'SphinxService' from module '"/Users/saghul/work/jitsi/lib-jitsi-meet/modules/transcription/transcriptionServices/SphinxTranscriptionService"'. An explicit type annotation may unblock declaration emit.

1 const AudioRecorder = require('./audioRecorder');
  ~~~~~

modules/transcription/word.js:7:1 - error TS9005: Declaration emit for this file requires using private name 'Word'. An explicit type annotation may unblock declaration emit.

7 const Word = function(word, begin, end) {
  ~~~~~

Found 4 errors.
~~~~

This is just the stepping stone towards the goal of eventually having
lib-jitsi-meet fully written in JS.

- introduce ts-loader for webpack
- webpack will continue generating the UMD bundle
- tsc will generate an ES6 module
- output all bundles to dist/

Fixes https://github.com/jitsi/jitsi-meet/issues/10754.

Other minor formatting changes.

Since the order of the ssrcs in the json-encoded message is not guaranteed to be in the correct SIM/FID order, log all the ssrcs.

* ref(JingleSession) Recycle m-lines by rejecting them on source removal.
By rejecting the m-lines on source removal (setting the port to 0 on the associated m-line), m-lines can be recycled for new sources instead of appending new ones.

* chore(deps) update sdp-interop@latest.

This fixes a regression introduced by the previous commit.

sLD is called immediately after createOffer/createAnswer, therefore the desc provided by createOffer/createAnswer can be directly passed to sLD without the need for converting it to unified plan format. This also fixes a warning seen on the browser console that says 'The description does not look like plan-b'.

The issue currently affects browsers based on Chromium 96.0.4664.110
including Brave, Chrome, Edge & Opera and Google Chrome 97.0.4692.56

* fix: Reads lobby jid from correct location in the error.

* squash: Add todo comment.

* feat: Adjust setReceiverConstraints to use new format

* add ReceiveVideoController spec

* rename prioritizedSources to onStageSources

* call FeatureFlags.init in specs and update description

* provide a default flags argument to FeatureFlags.init

* fix(RTC): fixed typo in function name

* fix(xmpp): codec renegotiation task needs to be queued

* fixed typos

After the refactor in
5a4232f908
the succesful terminating reason is expressed by the 'success' value in the
`reason`parameter, rather than having it undefined.

Ref: https://github.com/jitsi/lib-jitsi-meet/issues/1793#issuecomment-989913626