fix(kavita): move libraries to /var/lib/libraries
Previously we had our libraries in a subdirectory of /var/lib/copyparty
While that's an OK idea in theory, in practice it'd require us to make
every directory on the way to /var/lib/copyparty/data/groups/library
+rx to kavita. That's something we're unwilling to do. The true fix is
to move this out so we don't have to meddle with permissions except
those which are directly on this directory
authored by
a.starrysky.fyi
and committed by