User Directory not sortable by Status

Fixes https://github.com/osTicket/osTicket-1.8/issues/1277 and https://github.com/osTicket/osTicket-1.8/issues/1373
Merge pull request #1375 from Chefkeks/patch-4

User Directory not sortable by Status

Reviewed-By: Peter Rotich <peter@osticket.com>