Avoid localhost at notes endpoint

Use 127.0.0.1 instead of localhost since Etherpad only listens for ipv4.

Updated versions of npm packages for bbb-html5 on 2.2

kurento-utils: update UAParser and js.merge

Observe both added and changed events when user joins

Depending on the sequence of events on the server, user sometimes is
added to the users collection with the name information, and sometimes this
information is updated in a second moment. Once we need the username
to show the push notification, we observe changes on this field for both
added and changed event.

Closes #11307

Fix audio and push alerts for user join

Improve the way store information about breakout audio transfer

When validating tokens, the dummyUser created at the beginning is set
with validated=true. This means there won't be the state change that used
to occur from validated:false to validated:true (which detects the moment
joined the meeting) , therefore the alert code that expects for this change
won't run.
To fix this for audio alerts, we now detect when user join by observing
additions in Users's collection. This is actually good because we start
observing this only once (in componentDidMount), differently we used to do,
by calling this every time the tracker was activated.

To distinguish between the user addition that initially populates user's
collection from those that happens after user join (which are the ones we
want), we store the initial state (at componentDidMount) and compare it
with new additions. If the user added is present at the initial state,
then it is an addition to populates the collection, otherwise this is a real
user addition (happened after user joined the meeting)

Partially fixes #11399

When leaving audio/reconnecting , we must update breakout audio transfer
state.

Related to the issue #11333

We now update breakout'a audio transfer status by using an object

Currently this information is lost everytime breakout-room component is
unmounted, causing the panel to shows wrong information during next renders
Fixes #11333

Backport audio improvements from 2.3

Without 'exact' match, the browser fallbacks to the default inputDeviceId

This prevents the error (input device error)  when breakout is ended and we try
to skipCheck the microphone when user returns to main room (assuming the
user had the microphone active before joining breakout room).

Prevent toggleMute api call to be called for listenonly
This has no effect to the end user, but avoids unnecessary server calls

Fixes #11490

Fixes #11489

Bump to 2.2.35

Fix padId getter

Pad exporter uses this same location to serve pad's downloaded content
but the the match was failing because padId is not the last element
of the URL on that scenario.

Pattern follows /pad/p/<padID>[/export/(format)]?<query>.

Improve permission checks for video, screen sharing and listen only

Update handleClick condition (fix text-area for FireFox)

Rework padIds and turn bbb-web pad aware

Bump to 2.2.33

Set falllback value of voiceConf.ejectRogueVoiceUsers to true

Disable customHeartbeat 10826

Clean up HTMLAudioElement used for notification sounds

After ending the notification playback, we set the ".src" property to null, which immediately stop the internal player of mobile browser (tested on Chrome for Android -  device list is on #11458).
For the specific list of devices, this prevents the internal buffer error "-61" described in #11458.
Fixes #11458.