Pontoon: Update Norwegian Nynorsk (nn-NO) localization of AMO Frontend
Pontoon: Update Norwegian Nynorsk (nn-NO) localization of AMO Frontend

Localization authors:
- Bjørn I. <bjorn.svindseth@online.no>

mozilla/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,tsl143/addons-frontend,tsl143/addons-frontend,tsl143/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,mozilla/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,kumar303/addons-frontend,kumar303/addons-frontend,kumar303/addons-frontend,aviarypl/mozilla-l10n-addons-frontend,tsl143/addons-frontend,mozilla/addons-frontend,kumar303/addons-frontend,mozilla/addons-frontend