fix: update docs addon link on homepage to resolve 404

[algojogacor]

Summary

Fixes #422 — the "Learn about docs addon" button on the Storybook homepage links to /docs/writing-docs/introduction which returns a 404. Updated to link to /docs/writing-docs which is the canonical URL (a 301 redirect from the old path is already configured).

Root Cause

The document.tsx component on the homepage contains a hardcoded link to /docs/writing-docs/introduction. While a 301 redirect exists in raw-redirects to forward this path to /docs/writing-docs, the redirect doesn't prevent users from seeing a 404 when the redirect chain breaks.

Solution

Updated the href in the "Learn about docs addon" feature link from /docs/writing-docs/introduction to /docs/writing-docs — the canonical path already defined as the redirect target.

Changes

• apps/frontpage/components/home/document/document.tsx: Changed href from /docs/writing-docs/introduction to /docs/writing-docs (+1 -1)

Testing

• ✅ Link now points to the canonical /docs/writing-docs path
• ✅ No other hardcoded references to /docs/writing-docs/introduction in the codebase
• ✅ Consistent with the existing 301 redirect configuration

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👷 Deploy request for storybook-addon-catalog pending review.

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