Convert DLG_PUBLISHING to .ui

Change-Id: I0e15b6f7610c7b262a037d6a9ea482112a5bb8b4
Reviewed-on: https://gerrit.libreoffice.org/9532
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>