Pontoon: Update Czech (cs) localization of MDN
Pontoon: Update Czech (cs) localization of MDN

Localization authors:
- Richard Závodný <rickydesign@email.cz>

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