LinuxServer Changes:
Rebase to Alpine 3.18, deprecate armhf.
thelounge Changes:
sqlite: add migrations support and introduce primary key
Add the ability to migrate our db in the upwards direction.
Use the facility to add primary keys to our messages table.
This should allow work like jumping to messages and the likes.
This also introduces the framework for rollback, without actually
hooking it up.
This should be easy enough to do when the need arises.