fdfddde55a
* feat: Import room key bundles when received after invite. * tests: Add spec test for room key bundle arriving after invite accepted. * chore: Fix code quality issue (unnecessary async function). * docs: Tidy up comments. * refactor: Simplify key bundle importing after invite to one entrypoint. - Remove `onReceiveToDeviceEvent` from `CryptoBackend`. - Copy old room key bundle importing logic to `preprocessToDeviceEvents`. * refactor: Move late bundle importing to main preprocess loop. * fix: Use `Map` over `Record` to prevent prototype pollution.