operators can define their own config for bbb-web which will not be
overwritten by packages.

bbb-conf is changed accordingly to write configuration values to
``/etc/bigbluebutton/bbb-web.properties`

Enable arrow keys immediately after fullscreen

Prevent ejecting user from them main room when leaving breakout room

Remove unused 'app.poll.yn' from locales/en.json

Do not uncessarily fetch locales at first time you open/save settings menu

Show modals overlaid on full-screen slide or shared screen

Fix skip check test

Akka config

This change introduces a config file
`/etc/bigbluebutton/bbb-fsesl-akka.conf` which reads the default config
from packages and allows operators to keep their own config file changes
across package upgrades.

bbb-conf is adjusted to deal with this change.

config files from packages should not be changed unless they reside in
/etc

Reduces the number of options displayed on locale settings dropdown

Implemented merge option for default and local settings.

Fix bbb_skip_check_audio_on_first_join parameter

When user observing changes, we must guarantee these changes are from main room, and not from breakout one.
Fixes #11029

Locales would be fetched even if you simply open and save settings window (without changing any setting)
We now test it similarly we do on 2.2
Closes #11318

Remove setNumberOfHTML5Processes

Fix layout params (show participants + show public chat) not affecting the meeting

Fix user-sent poll result messages

Needed for https://github.com/bigbluebutton/bigbluebutton/pull/11432

This change introduces a config file
`/etc/bigbluebutton/bbb-apps-akka.conf` which reads the default config
from packages and allows operators to keep their own config file changes
across package upgrades. This removes the workaround of copying the
config file to /tmp in preinst and then extracvting API URI and secret
and then in postinst inject it back to the config file in /usr/share

If the config file in /usr does not have the "changeme" secret, then API
URI and secret are extracted and injected to the generated file /etc, so
packages would upgrade in a clean way.

The postrm script removes the config file in /etc if the package is
purged but not if it is just uninstalled.

bbb-install and bbb-conf must reflect this change and replace the API
secret and URL in /etc, not /usr/share

Typo "qestion"

Pulled HTML5 locales on Feb 18, 2021

Remove duplicate import of throttle

Merge 2.2 into 'develop'

Fix user status in chat

Merge pull request #11425 from bigbluebutton/dependabot/npm_and_yarn/bigbluebutton-html5/tests/puppeteer/node-notifier-8.0.1

Bump node-notifier from 8.0.0 to 8.0.1 in /bigbluebutton-html5/tests/puppeteer

Bumps [node-notifier](https://github.com/mikaelbr/node-notifier) from 8.0.0 to 8.0.1.
- [Release notes](https://github.com/mikaelbr/node-notifier/releases)
- [Changelog](https://github.com/mikaelbr/node-notifier/blob/v8.0.1/CHANGELOG.md)
- [Commits](https://github.com/mikaelbr/node-notifier/compare/v8.0.0...v8.0.1

)

Signed-off-by: dependabot[bot] <support@github.com>