Made a start in removing the incorrect 'Infos' German plural

Change-Id: Ie989351a7473fc35b563e63ce6a4fb229093af60
Reviewed-on: https://gerrit.libreoffice.org/22301Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
Tested-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>