Same shape as the others. Three of the eight references were prose
rather than code: two assertion messages naming the option to an
operator, and a `defaultText` in the authelia module, whose
`oidc.hiveIdentities` derives from whether the queue runs here.
Also corrects a comment in swarm.nix that this commit's own hunk sits
directly beneath. It said `enableRequiredServices` turns on matrix and
authelia "but NOT nats (nats has no mode that enables it)", which stopped
being true when the queue was added to that switch — before this change,
not by it. The reasoning it introduces is still right and still worth
keeping; only the premise had expired.
64e8c62f18