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

Localization authors:
- Michal Vašíček <michalvasicek@icloud.com>
- Richard Závodný <rickydesign@email.cz>

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