Fix: Correct import path and Add Chinese on Giscus language

[clicelee]

📝 Key Changes

1. Fixed a typo in docs: 간체 중국어 번역 #120 where ch.mjs was incorrectly used. Changed it to ch.mts

• changed file: config.mts

2. Applied the approach defined in Feat: Improve Giscus theme visibility and add i18n support #127 for syncing Giscus language settings.

• changed file: utils/index.ts
  • Added ch: "zh-CN" to GISCUS_LANG_MAP.
  • Reference: this comment.

🤔 Discussion

• The Chinese documentation is currently labeled as ch, but according to ISO 639-1, zh might be more appropriate.
  • However, this does not cause any readability issues.
  • Since renaming the folder and files would take considerable effort, it would be best to decide based on the project’s direction and purpose. I’d love to hear your thoughts on this.

🖼️ Before and After Comparison

Key Change 2: added chinese to GISCUS_LANG_MAP. utils/index.ts

Before	After

[vercel]

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[Seol-JY]

Like in other Toss library documents, I also thought it would be better to use more standard language codes like zh-Hans(preferred) or zh-CN that represent Simplified Chinese rather than ch.

If we were to make changes, I think we should use lowercase for these language codes (zh-hans, zh-cn) rather than mixed case (zh-Hans, zh-CN) since they're used in URL paths. This ensures consistent behavior across different systems and follows established URL standards.

[milooy]

Thank you for the detailed explanation @clicelee , @Seol-JY 👍

❌ ch is non-standard and should not be used.
❌ Using zh alone cannot distinguish between Simplified and Traditional Chinese.
✅ zh-Hans is recommended as it covers all Simplified Chinese users.
🌍 For URLs, using lowercase (zh-hans) is more appropriate (e.g., example.com/zh-hans/).

It'll be great if you can make another PR for changing folder name /ch → /zh-hans .

[clicelee]

I'll do it right away 👍