fix: remove socialLinks twitter in redirect and document

[SoonIter]

Summary

rspress/packages/core/src/node/utils/getSocialIcons.ts

Line 30 in 6e66f15

type IconName = keyof typeof presetIcons;

because of #1788, we have already remove 'twitter' type... so just remove it completely

Related Issue

#1788

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[netlify]

✅ Deploy Preview for aquamarine-blini-95325f ready!

Name	Link
🔨 Latest commit	6e66f15
🔍 Latest deploy log	https://app.netlify.com/sites/aquamarine-blini-95325f/deploys/67a32c60a72b4c00086bbd81
😎 Deploy Preview	https://deploy-preview-1812--aquamarine-blini-95325f.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 78 (🟢 up 2 from production) Accessibility: 97 (no change from production) Best Practices: 92 (no change from production) SEO: 100 (no change from production) PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify site configuration.