This should be a pure re-factor, plus:

    switch from Serif -> Sans font default for the UI (wow).
    enable larger font size for LOK only
        that avoids a hard to debug svx junit test failure.

Change-Id: Id438026064983ea4907819bab55c4be740954605
Reviewed-on: https://gerrit.libreoffice.org/44625Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>