fdo#39468 Finish translating German comments

Change-Id: I8163bd42c24a4f5a5fd4e048836d7e77d3993fe2
Reviewed-on: https://gerrit.libreoffice.org/10452
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>