fdo#39468 Translate German comments, clean some ws

Conflicts:
	forms/source/component/FormComponent.cxx
	forms/source/component/FormattedField.cxx

Change-Id: I76dacfff3aa6f5680a1e81c97281c4f744ec1ceb
Reviewed-on: https://gerrit.libreoffice.org/11622
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>