Update zh_CN.json for version 4.0.0

[ThearchyHelios]

HELLO Denis, This is zh_CN.json for version 4.0.0, If you think there's anywhere i need to modify, just tell me and i will make the change ASAP.

[DenisD3D]

That look very good Two minor changes :

• Remove the line you haven't translated, it will be replaced by the english file automaticly
• Add yourself to the contributor list in LangManager.java (https://github.com/DenisD3D/Mc2Discord/blob/96c2a1fe97e3c1395c43acae496bff2253c1cc79/mc2discord-core/src/main/java/fr/denisd3d/mc2discord/core/LangManager.java#L16)

[DenisD3D]

That looks perfect to me! Thanks you very much for your contribution

[DenisD3D]

You may download the version that include ZH_CN here: https://github.com/DenisD3D/Mc2Discord/actions/runs/5598896336 (1.19) https://github.com/DenisD3D/Mc2Discord/actions/runs/5598897388 (1.20)