Move remaining static vars into the properties container

Change-Id: Ic52213fa73290508216fa9d2c27805e2afe68747
Reviewed-on: https://gerrit.libreoffice.org/12488
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>