Matrix-nio

Fixed

- Fixed support to run nio without python-olm.
- Fixed an incorrect raise in the group sessions sharing logic.
- Handle 429 errors correctly even if they don't contain a json response.

Fixed

- Fix a wrong assertion resulting in errors when trying to send a message.

Added

- Kick, ban, unban support to the AsyncClient.
- Read receipt sending support in the AsyncClient.
- Read receipt parsing and emitting.
- Support token login in the AsyncClient login method.
- Support for user registration in the BaseClient and AsyncClient.
- Support for ID based filters for the sync and room_messages methods.
- Support filter uploading.

Changed

- Convert attrs classes to dataclasses.
- Fire the `synced` asyncio event only in the sync forever loop.

Fixed

- Don't encrypt reactions.
- Properly put event relationships into the unencrypted content.
- Catch Too Many Requests errors more reliably.
- Better room name calculation, now using the room summary.

Removed

- Removed the legacy store.