* Create migrating_to_new_device.md

* Add link to Readme for further information.

* Added some info

* Make separate backup guide and integrate Readme information with new guides.

Co-authored-by: Licaon_Kter <licaon-kter@users.noreply.github.com>

fixes #4321

fixes #4338

fixes #4351
fixes #4261

com.cheogram.android: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.

https://github.com/iNPUTmice/Conversations/issues/4338

* audio-routing2:
  Support mute during dialler integration calls
  Use a more familiar ringback for north american users

* upstream/master:
  every device is 21+ now
  bump targetSdk to 32
  use signal protocol android
  version bump to 2.10.7
  do not show toast when activity is gone. fixes #4335
  fix orbot detection
  pulled translations from transifex
  Here too
  Show battery dialogue always
  fix array out of bounds. fixes #4334
  add local only flag to foreground service
  pulled translations from transifex
  bump dependencies
  A Quicky user can be a stranger
  pulled translations from transifex
  minor code clean up
  use item id 'current' for nick as fallback as per XEP-0060 §12.20
  bump various libraries
  pulled translations from transifex
  support sasl/temporary-auth-failure

...but why was that function created elsewhere if here you just compare this?

At some point a refactor changed this check from checking that the quicksy
domain itself is talking to you, to checking that anyone using quicksy is
talking to you, which breaks the notifications from strangers setting for
quicksy users.

This is the max for Bandwidth HTTP-API MMS attachments

if the server is unable to query the database throwing a temporary-auth-failure
might be more appropriate

* fix-contact-sync:
  Contact sync needs to happen when we discover a new gateway
  Skip contact sync work if there are no gateways configured

* 'master' of github.com:iNPUTmice/Conversations:
  bump agp
  version bump to 2.10.6
  pulled translations from transifex
  do not merge failed decryptions
  version bump firebasse-messaging lib

Since that can change the outcome of the sync operation.

Or if syncing before gateways have been discovered, etc.  Don't do the work if
we know nothing will come of it.

* darker:
  Darker Obsidian

* 3GPP-video:
  Move video MIME above audio MIME