Pontoon: Update German (de) localization of MDN
Pontoon: Update German (de) localization of MDN

Localization authors:
- Michael Köhler <michael.koehler1@gmx.de>

a2sheppy/kuma,ollie314/kuma,SphinxKnight/kuma,a2sheppy/kuma,mozilla/kuma,safwanrahman/kuma,SphinxKnight/kuma,safwanrahman/kuma,Elchi3/kuma,jwhitlock/kuma,yfdyh000/kuma,yfdyh000/kuma,yfdyh000/kuma,Elchi3/kuma,escattone/kuma,ollie314/kuma,safwanrahman/kuma,jwhitlock/kuma,jwhitlock/kuma,a2sheppy/kuma,SphinxKnight/kuma,jwhitlock/kuma,Elchi3/kuma,escattone/kuma,mozilla/kuma,Elchi3/kuma,a2sheppy/kuma,Elchi3/kuma,escattone/kuma,SphinxKnight/kuma,ollie314/kuma,SphinxKnight/kuma,SphinxKnight/kuma,yfdyh000/kuma,mozilla/kuma,yfdyh000/kuma,safwanrahman/kuma,safwanrahman/kuma,ollie314/kuma,safwanrahman/kuma,yfdyh000/kuma,ollie314/kuma,jwhitlock/kuma,a2sheppy/kuma,mozilla/kuma,ollie314/kuma,mozilla/kuma