Translate /config/locales/en.yml in cs (bigbluebutton#1631)

translation completed for the source file '/config/locales/en.yml'
on the 'cs' language.

Co-authored-by: transifex-integration[bot] <43880903+transifex-integration[bot]@users.noreply.github.com>
Co-authored-by: Ahmad Farhat <[email protected]>

Author: transifex-integration[bot]