Fix typo && update zh-CN.json

[Lynricsy]

Description

Replaced some traditional characters in zh-CN.json with simplified ones and made the language more precise.

Type of changes

• Bug fix
• New feature
• [x ] Enhancement
• Documentation

Checklist:

• [x ] My code follows the style guidelines of this project
• [x ] My pull request is unique and no other pull requests have been opened for these changes
• [x ] I have read the Contributing note and Code of conduct
• [x ] I am responsible for any copyright issues with my code if it occurs in the future.

[zhaodice]

"given": "Given %s with level %s to %s.",
can be translated to
"given": "给予角色 %s 等级 %s 于UID %s.",

[Lynricsy]

"given": "Given %s with level %s to %s.", can be translated to "given": "给予角色 %s 等级 %s 于UID %s.",

Thanks.fixed.