fix: window unexpected href when feature link is not configured

[Timeless0911]

Summary

normalizeHrefInRuntime(withBase(rawLink, routePath)) will generate a /index, which will cause unexpected window href if user click a feature component without link configured.

Related Issue

Checklist

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

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Lighthouse	1 paths audited Performance: 89 (🟢 up 1 from production) Accessibility: 97 (no change from production) Best Practices: 92 (no change from production) SEO: 92 (no change from production) PWA: - View the detailed breakdown and full score reports

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