2c8b0d0b95
* Use `ClientSessionDelegate` to ensure tokens are always updated. Refreshed tokens on client restoration might not have been stored to disk if the token refresh happened before `RustMatrixClient` was built and the `ClientDelegate` was set in it. Using `ClientSessionDelegate` should ensure the tokens refreshed callback is called at any point in time. * Improve how assigning the Client works, fix docs * Fix review comments