l10n: de.po: update translation according to updated glossary (part 1)

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
l10n: de.po: update translation according to updated glossary (part 2)

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>
l10n: de.po: update translation according to updated glossary (part 3)

Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com>