Add lang cn

[matheo-2001]

chinese lang added

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6bde2b2) 96.80% compared to head (c0318b0) 96.80%.
Report is 6 commits behind head on v3.0.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@            Coverage Diff            @@
##               v3.0     #615   +/-   ##
=========================================
  Coverage     96.80%   96.80%           
  Complexity      266      266           
=========================================
  Files            34       34           
  Lines          1126     1126           
=========================================
  Hits           1090     1090           
  Misses           36       36           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.