Pontoon: Update Danish (da) localization of AMO Linter
Pontoon: Update Danish (da) localization of AMO Linter

Localization authors:
- Jakob Kappel <jakobkpetersen@gmail.com>
- Ringgo <armen.ringgo@yahoo.de>

mozilla/addons-validator,mozilla/addons-linter,mozilla/addons-linter