The visibility of the toolbar can be toggled by interacting with the main screen.
This change allows the toolbar to be configured to be 'always visible'. This voids
the 'toggle' functionality.

If "startWithAudioMuted" option is used we need to make sure that new
local audio track will be created on unmute.

The commit message of "Associate remote participant w/ JitsiConference
(_JOINED)" explains the motivation for this commit.

Practically, _JOINED and _LEFT combined with "Remove remote participants
who are no longer of interest" should alleviate the problem with
multiplying remote participants to an acceptable level of annoyance.

Technically though, a remote participant cannot be identified by an ID
only. The ID is (somewhat) "unique" in the context of a single
JitsiConference instance. So in order to not have to scratch our heads
over an obscure corner, racing case, it's better to always identify
remote participants by the pair id-conference. Unfortunately, that's a
bit of a high order given the existing source code. So I've implemented
the cases which are the easiest so that new source code written with
participantUpdated is more likely to identify a remote participant with
the pair id-conference.

Additionally, the commit "Reduce direct read access to the
features/base/participants redux state" brings more control back to the
functions of the feature base/participants so that one day we can (if we
choose to) do something like, for example:

If getParticipants is called with a conference, it returns the
participants from features/base/participants who are associated with the
specified conference. If no conference is specified in the function
call, then default to the conference which is the primary focus of the
app at the time of the function call. Added to the above, this should
allow us to further reduce the cases in which we're identifying remote
participants by id only and get us even closer to a more "predictable"
behavior in corner, racing cases.

Turns out React Native offers an object with the following definition:

{
    bottom: 0,
    left: 0,
    position: 'absolute',
    right: 0,
    top: 0
}

* feat(toolbar): add beta tag to live streaming button

* tweak colors and border radius

Wait until the right button size has been calculated before rendering it.

- add 10px of padding on the sizes of the toolbar
- make the button margin smaller (from 10 to 7)
- increate the secondary button factor to 85%, thus rising the maximum secondary
  button size to 50 (from the previous 48)

- 5 buttons in the (now single) toolbar
- Overflow menu in the form of a BottomSheet
- Filmstrip on the right when in wide mode

* feat(recording): frontend logic can support live streaming and recording

Instead of either live streaming or recording, now both can live together. The
changes to facilitate such include the following:
- Killing the state storing in Recording.js. Instead state is stored in the lib
  and updated in redux for labels to display the necessary state updates.
- Creating a new container, Labels, for recording labels. Previously labels were
  manually created and positioned. The container can create a reasonable number
  of labels and only the container itself needs to be positioned with CSS. The
  VideoQualityLabel has been shoved into the container as well because it moves
  along with the recording labels.
- The action for updating recording state has been modified to enable updating
  an array of recording sessions to support having multiple sessions.
- Confirmation dialogs for stopping and starting a file recording session have
  been created, as they previously were jquery modals opened by Recording.js.
- Toolbox.web displays live streaming and recording buttons based on
  configuration instead of recording availability.
- VideoQualityLabel and RecordingLabel have been simplified to remove any
  positioning logic, as the Labels container handles such.
- Previous recording state update logic has been moved into the RecordingLabel
  component. Each RecordingLabel is in charge of displaying state for a
  recording session. The display UX has been left alone.
- Sipgw availability is no longer broadcast so remove logic depending on its
  state. Some moving around of code was necessary to get around linting errors
  about the existing code being too deeply nested (even though I didn't touch
  it).

* work around lib-jitsi-meet circular dependency issues

* refactor labels to use html base

* pass in translation keys to video quality label

* add video quality classnames for torture tests

* break up, rearrange recorder session update listener

* add comment about disabling startup resize animation

* rename session to sessionData

* chore(deps): update to latest lib for recording changes

I don't think it's realistic that we'd merge a PR that breaks the most
important shortcuts of the app (in my opinion): audio and video
mute/unmute.

Contributing all buttons in one place goes against the designs that we
set out at the beginning of the project's rewrite and that multiple of
us have been following since then.

Technically we still depend on interfaceConfig, but this paves the way for when
that is no longer the case.

Create standalone components for each feature and move all state to them.
Toolbars are now dummy containers.

- Move the toolbar to the filmstrip feature
- Use all the buttons from the toolbox feature

Only on web, since there is currently no equivalent on mobile. It encapsulates
all funcionality related to opening the settings dialog / panel.

Currently the following are implemented:

- AudioMuteButton
- HangupButton
- VideoMuteButton

In order to implement these new buttons a new abstract class was introduced,
which abstracts the ToolboxItem into a button with enough hooks so a stateful
and a stateless version of it can be created.

This patch only adds the stateful implementation of the aforementioned buttons.

This abstraction represents an action which can go anywhere in a toolbox (be
that the main toolbar or the overflow menu) and it's platform independent.

It does not depend on Redux, thus making it stateless, which facilitates its use
in stateful button implementations as well as stateless ones.

If authenticated using JWT, don't show the profile button but
do show it if a guest.

* fix(toolbar): make button hover bigger

* fix(toolbar): make hangup button bigger

* fix(always-on-top): make toolbar and buttons same sizes as main toolbar

* fix(toolbar): change some tooltips

* fix(toolbar): adjust side panel and filmstrip for new toolbar sizes

- Change copy
- Add labels to dropdowns
- Adjust color and positioning

* feat(icons): add new recording button icon

* feat(toolbar): show different rec/streaming icon

* Button conditionally shown based on if the feature is enabled and available
* Hooks for launching the invite UI (delegates to the native layer)
* Hooks for using the search and dial out checks from the native layer (calls back into JS)
* Hooks for handling sending invites and passing any failures back to the native layer
* Android and iOS handling for those hooks

Author: Ryan Peck <rpeck@atlassian.com>
Author: Eric Brynsvold <ebrynsvold@atlassian.com>

- old toolbox actions
- chat command processor
- room subject handling

The feature was not ported to the new toolbar. Arguable these
can all be moved into notification but for now simply the
logic will be removed and worked on again as demand arised.

In preparation for "pinch to zoom" support in desktop streams on mobile, make
certain Views not intervene in touch event handling. While the modification is
necessary for "pinch to zoom" which is coming later, it really makes sense for
the modified Views to not be involved in touching because they're used to aid
layout and/or animations and are to behave to the user as if they're not there.

This PR takes The Bulldozer Approach (R): removes the old toolbox and lots of
associated code, though not all of it. Subsequent cleanups will follow.

* ref(toolbar): add accessibility labels for torture tests

* squash: update propTypes