first batch of Czech translations (#5810)
first batch of Czech translations (#5810)

Co-authored-by: mgswiss15 <60832ae40b11b0ab0c2d89d93144dbdc0a075dd0@hesge.ch>
javatlacati/codecombat,codecombat/codecombat,codecombat/codecombat,javatlacati/codecombat,javatlacati/codecombat,codecombat/codecombat,codecombat/codecombat,codecombat/codecombat,javatlacati/codecombat,javatlacati/codecombat