The gate took a single boolean, so a signed-out visitor on an instance that
does have the assistant configured was told an administrator still needs to
configure it. The server cannot check availability without a session, so
collapsing the two states made it state something it could not know.
The layout now resolves one of enabled, unconfigured, unauthenticated or
error, which maps onto the four messages that already exist in the
translations. Dropping the client-side session check from the branch also
removes a possible remount once the session settles.
Thomas Camlong
acc11e8d17