feat(external_api) exposes more events from JS to native and adds the ability to send actions from native to JS.

Fixes: https://github.com/jitsi/jitsi-meet/issues/8353

This may happen due to API misuse, but also in complex applications where
activity lifetimes are not straightforward.

The amplitude-js library gained React Native support so there is no need to keep
separate implementations.

Ref:
https://developer.android.com/reference/android/app/Activity#setVolumeControlStream(int)

Looks like audio devices must be re-set after focus was lost and regained.
Otherwise some devices (tested on a Samsung Galaxy S9) are in a weird state
where the second microphone is not used when speakerphone is on.

Co-authored-by: Saúl Ibarra Corretgé <saghul@jitsi.org>
Co-authored-by: zycwind <391321232@qq.com>

https://github.com/jitsi/jitsi-meet/issues/7911#issuecomment-714323255

Looks like the "Firebase Analytics" dependency is needed when migrating to the
new Firebase Crashlytics SDK. We are only interested in the "latest iversion
crash-free users" stat, which seems to require this. The documentartion is
somewhat confusing though.

JSC wasn't the cause for the crash we were hunting after all. RN doesn't set
HErmes as the default, neither does Expo, so the jury is still out on Hermes,
and it looks like JSC is still the safest bet.

In addition, the way Hermes is packaged (as a standalone AARs, instead of a
local "Maven repo") complicates the SDK build and can make the resulting build
bloated.

The RN Permissions module calls this in a non-UI thread. What we observe is a
crash in ViewGroup.dispatchCancelPendingInputEvents, which is called on the
calling (ie, non-UI) thread. This doesn't look very safe, so try to avoid a
crash by pretending the permission was denied.

It can help catch very weird bugs which are only triggered after a reset.

Android < 23 is currently less than 3% for us so let's try to lower the
maintenance burden. Users can still download an older version no problem.

This will be mandatory later in the year for updating apps and it already is for
new apps.

https://support.google.com/googleplay/android-developer/answer/113469#targetsdk

When exiting PiP with by pressing the X the onPictureInPictureModeChanged method
is called. Since onResume is called a while after, in case the maximize button
is called, it's not easy to know if the user pressed the X button, and that was
the cause for exiting PiP.

So, in order to avoid show the user they are still in the meeting, bring the
activity to the foregound so they can hangup.

Despite running Android 8.1, they don't support Picture-in-Picture.

Android for Enterprise provides special feature for applications to obtain configuration through RestrictionManager remotely by some MDM solution.

Jitsi Meet can be remotely installed and provisioned with a proper URL (making URL not editable by the user) inside the Work Profile or Fully managed device.

Rebase our patches (in PR) on top of latest master.

Sshould fix a crash when requesting permisssions.

- No need to handle the activity result in the fragment, since we already do in
  the Activity
- Automagically ddispose the view when destroyed

Co-authored-by: Titus-Andrei Moldovan <moldovan.titus@gmail.com>