We weren't waiting for rooms to arrive down the sync stream after
joining them but before trying to use them.
More regression details in linked issue.
Fixes https://github.com/vector-im/element-call/issues/477
Add a check to ensure that we find crypto data in the crypto store
when we're restoring a session and otherwise abort the session restore.
This will prevent us from restoring a session and generating new keys
when there was a previous session with different keys.
***This will force a logout for all users***
See the linked issue (and the comment in code) for more detail.
Fixes https://github.com/vector-im/element-call/issues/464
The room alias is not part of the spec. Synapse returns it anyway,
but it's not part of the js-sdk types. We don't really need the
server to tell us what the alias is, so just generate it locally
instead.
