HIG fixes for sfx2

Change-Id: Ide13fff6a3d5d82847c4886967283cb4b59bcfbb
Reviewed-on: https://gerrit.libreoffice.org/12321
Reviewed-by: Samuel Mehrbrodt <s.mehrbrodt@gmail.com>
Tested-by: Samuel Mehrbrodt <s.mehrbrodt@gmail.com>