2.5.0-beta

[2.5.0] [internal] 2021 June 22

Added

• Push notifications rich layouts: big text, big image, default
• Push notifications actions: reply to chat/mention, accept/reject follow request.

Changed

• BREAKING. Push notifications rework. Add support for new version of PushRelayServer which don't decrypts message on server side.
  Fedi don't decrypt pushes too(it is not easy too implement and will be added later). Fedi usse an encrypted push message as trigger to load latest notification and display it to user. See more in Readme
• You should re-subscribe for push notifications inside app to use new push relay server. Otherwise, you will see old behavior.
• Update Readme: describe receive_sharing_intent and iOS group ids
• Update Readme: push notifications
• Remove empty time ago prefixes from localization