While Fastlane recommends automagic screenshots, we cannot really do that since
we require a specific setup for a video call and so on.

ios: fix SDK build after dropping iOS 10

* Update lib-jitsi-meet and js-utils

Since we only support iOS 11, 32 bit architectures must not be built.

PostMessageTransportBackend and Transport, along
with the constants file they both use, were
moved int js-utils for jitsi-meet-spot.

There are modules that will not work with prosody 0.10 as they depend on util.async. Adds a safeguard and print error about it in the logs.
And others that just do not work because of the muc module API that they use.

This addresses a bug, in which submitting a password
through the iframe api no longer closes RoomLockPrompt,
by explicitly closing prompts for a lock or password.

Sometimes conflicting or wrong configuration can leave the package in broken state and users cannot even uninstall/purge the packages, and it also breaks any other package installation.

Also removed some no longer used styles.

Some Samsung devices will fail to fully engage ConnectionService if no SIM card
was ever installed on the device. We could check for it, but it would require
the CALL_PHONE permission, which is not something we want to do, so fallback to
not using ConnectionService.

Some devices seem to have a bug in their Android versions and startCall fails
with SecurityError because the CALL_PHONE permissions is not granted. This is
not a requirement for self-managed connection services as per the official
documentation though:
https://developer.android.com/guide/topics/connectivity/telecom/selfManaged

Alas, connection services takes over audio device management too, so let's
handle the error and disable CS if we get SecurityError.