Add setBlurredBackground command to external api.

Co-authored-by: Axel Prola <axel.prola@equasens.com>

* feat(follow-me): Adds iframeAPI to activate recorder follow me.

* squash: suggestion.

Co-authored-by: Hristo Terezov <hristo@jitsi.org>

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Co-authored-by: Hristo Terezov <hristo@jitsi.org>

* feat(shared-video): Shows confirmation dialog before playing video.

* feat(shared-video/native): created ShareVideoConfirmDialog and unified actions

* squash: Simplifies state and fixes stop and then start scenario.

* squash: Use constants everywhere.

* squash: Use helper function.

* squash: Ignore any command with not matching video URL.

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Co-authored-by: Calin-Teodor <calin.chitu@8x8.com>

This is a prerequisite for operations that rely on previous messages, such as reactions.

This reverts commit 6727004930.

Many of the events are not used at all or used only on one place. For the rest of them the listeners were added 2 times on promoted visitors and not cleaned at all.

Events such as "mouse-move", "mouse-leave" and "face-landmark-detected"
reach this code and pollute the logs. It's probably worth investigating
why this is the case and fixing it if necessary, but for now just remove
the log message.

* ref(transcriptions): refactor transcriptions api

* ref(transcriptions): refactor usage of translation label

Extend IFrame API to allow adding a transcriber in the room without the subtitles needing to be visible.
Allow transcription chunk messages to be passed through the IFrame API if a transcriber is present.
Clean-up transcription messages sent through the IFrame API to not include timeout field and possible conflicting states (stable / unstable /final)

* fix linting

* code review: extend api message to match webhook format

* feat: Log all API commands.

It's fired when the API is ready, and it signals the embedder that they
can reveal the meeting from behind an overlay, for example.

The astute reader might notice we are currently sending a
'browser-support' event roughly at the same time. The reason for this
new event is plain simply semantics.

In addition the 'onload' handler is faked by calling it when the new
ready event fires. The original onload event is unreliable. It will be
called even when nothing was ever loaded (try loading a page without
internet and be amused).

* fix(electron-screensharing): simplify the proccess

use send the share screen sources using the external api

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Co-authored-by: Gabriel Borlea <gabriel.borlea@8x8.com>

- added command for setting the camera facing mode remotely
- enhanced toggleVideo command to optionally accept the facing mode
- fix(startSilent) do not create audio track when start silent

* Forward non-participant-message-received to iFrame API

* Updated comment

* Fix lint errors

* feat(bwe) support setting the bandwidth from the client

Remove flow-related packages
Remove type annotations from JS files

* add toggleWhiteboard to Jitsi API

* eslint recommendations applied

* Prevent to send whiteboard status change notifications for mobile

* Fix code style errors (eslint)

* Requested changes (by mihhu) have been made.

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Co-authored-by: Fikret Huseynkhanov <fikret.huseynkhanov@simbrella.com>

Fix imports

Implement redesign

* feat(notifications) trigger iframe api event when a notification occurs

* remove useless comment

* fix typo

* add custom remote menu button

* add config for custom buttons

* whitelist custom buttons flag

* add toolbox custom button

* fix notify toolbox buttons

* whitelist toolbar custom buttons

* rename and fix notify

* rename participant remote menu

* revert some flag wrong changes

* fix some formatings

* add undefined type to custom buttons toolbox

* code review

* code review 2

* fix linting issue

* ref(misc) remove unused code for dock / undock

* remove translations

* report pc connection failure

* typos

* code review / update rtcstats

* check for undefined APP

Add the ability to specify video type when in multistream mode.