Add full Simplified Chinese translation

[FiftysixTimes7]

For #4418

• Pull request represents a single change (i.e. not fixing disparate/unrelated things in a single PR).
• Title summarizes what is changing.
• Has a news entry file (remember to thank yourself!).
• Appropriate comments and documentation strings in the code.
• Has sufficient logging.
• Has telemetry for enhancements.
• Unit tests & system/integration tests are added/updated.
• Test plan is updated as appropriate.
• package-lock.json has been regenerated by running npm install (if dependencies have changed).

[codecov-io]

Codecov Report

Merging #4418 (8de2744) into main (aaf6109) will increase coverage by 0%.
The diff coverage is n/a.

@@          Coverage Diff          @@
##            main   #4418   +/-   ##
=====================================
  Coverage     75%     75%           
=====================================
  Files        392     392           
  Lines      25671   25671           
  Branches    3669    3669           
=====================================
+ Hits       19366   19377   +11     
+ Misses      4795    4786    -9     
+ Partials    1510    1508    -2     

Impacted Files	Coverage Δ
src/client/common/process/baseDaemon.ts	53% <0%> (-3%)	⬇️
...er/jupyterInterpreterSubCommandExecutionService.ts	88% <0%> (-2%)	⬇️
...lient/datascience/jupyter/kernels/kernelService.ts	61% <0%> (-2%)	⬇️
src/client/datascience/notebook/helpers/helpers.ts	69% <0%> (-2%)	⬇️
src/client/datascience/jupyter/notebookStarter.ts	77% <0%> (-2%)	⬇️
src/client/datascience/jupyterDebugService.ts	77% <0%> (-1%)	⬇️
...ient/datascience/jupyter/kernels/kernelSelector.ts	79% <0%> (-1%)	⬇️
src/client/datascience/baseJupyterSession.ts	76% <0%> (+<1%)	⬆️
...lient/datascience/jupyter/jupyterSessionManager.ts	73% <0%> (+1%)	⬆️
...rc/client/datascience/jupyter/debuggerVariables.ts	83% <0%> (+1%)	⬆️
... and 8 more

[rchiodo]

Thanks for the translation.