* Use client logger for `RustBackupManager`
* use client logger in `CrossSigningIdentity`
* use client logger in `OutgoingRequestProcessor`
* RoomEncryptor: use correct logger for logDuration
use the logger for this specific event, rather than the more general one for the room
* Use client logger in `RoomEncryptor`
* Simplify bootstrapSecretStorage logic
might as well just export the keys immediately, rather than having multiple
tests.
* Clean up typescript types related to rust crypto
A forthcoming release of matrix-rust-sdk-crypto-wasm tightens up a number of
typescript types. In preparation, we need to get our house in order too.
