Amend province for zh-CN

[ccmywish]

Motivation / Background

In China, we use province instead of state. In the original localization, the default term state was used.

To address this, I adjusted it to province and used the standard term of each province rather than an abbreviation.

However, there is an issue with this PR: to maintain backward compatibility, I used YAML's anchor syntax. What do you think — is this necessary?

Checklist

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