Add Simplified Chinese zh-CN translation

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Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• [ ] The code change is tested and works locally.
• [x] There is no commented out code in this PR.
• [x] I have followed the contribution guidelines
  • [ ] This PR is for a custom-card or documentation change and therefore directed to the main branch.
  • [x] This PR is for a official card or any other directly to the integration related change and therefore directed to the release branch.