fix giscus

[AmosChenZixuan]

Describe the bug A clear and concise description of what the bug is.

To Reproduce Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior A clear and concise description of what you expected to happen.

Screenshots If applicable, add screenshots to help explain your problem.

System Info (if dev / build issue):

• OS: [e.g. iOS]
• Node version (please ensure you are using 18+)
• Npm version

Browser Info (if display / formatting issue):

• Device [e.g. Desktop, iPhone6]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Additional context Add any other context about the problem here.