remove unmaintained mastodon link from footer (#7873)

[CodingRule]

This closes #7873.

Description

• remove the retired Mastodon link from the website footer
• remove the hidden rel="me" Mastodon reference from the root layout
• add a regression test so the retired URL is not added back

Validation

• pnpm format passes
• pnpm test passes
• pnpm build passes
• node --test apps/site/util/__tests__/navigation.test.mjs passes
• git diff --check passes
• reviewers can confirm that the footer no longer shows the Mastodon icon/link and that the root layout no longer contains https://social.lfx.dev/@nodejs
• pnpm build prints an existing Next.js warning about the deprecated middleware file convention, but the build completes successfully

Check List

• I have read the Contributing Guidelines and made commit messages that follow the guideline.
• I have run pnpm format to ensure the code follows the style guide.
• I have run pnpm test to check if all tests are passing.
• I have run pnpm build to check if the website builds without errors.
• I've covered new added functionality with unit tests if necessary.

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Project	Deployment	Actions	Updated (UTC)
nodejs-org	Ready	Preview	May 18, 2026 8:28am

[cursor]

PR Summary

Low Risk
Low risk: removes a retired social link and a hidden rel="me" reference, plus adds a small regression test; no functional/business logic changes beyond footer navigation content.

Overview
Removes the retired Mastodon URL (https://social.lfx.dev/@nodejs) from the site by deleting the hidden rel="me" anchor in app/[locale]/layout.tsx and dropping the Mastodon entry from navigation.json social links.

Adds a Node test (util/__tests__/navigation.test.mjs) to prevent the retired Mastodon URL from being reintroduced in either the navigation config or the root layout.

^{Reviewed by Cursor Bugbot for commit 3f6cf28. Bugbot is set up for automated code reviews on this repo. Configure here.}

[Copilot]

Pull request overview

Removes an unmaintained Mastodon profile reference from the site’s footer/navigation config and from the root layout, and adds a regression test to prevent reintroducing the retired URL.

Changes:

• Removed the Mastodon entry from apps/site/navigation.json social links (footer icons/links).
• Removed the hidden rel="me" Mastodon anchor from the root layout.
• Added a unit test ensuring the retired URL is not present in navigation config or the root layout.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
apps/site/util/tests/navigation.test.mjs	Adds regression assertions preventing the retired Mastodon URL from returning in navigation or layout.
apps/site/navigation.json	Removes the Mastodon social link entry from socialLinks.
apps/site/app/[locale]/layout.tsx	Removes the hidden rel="me" link pointing to the retired Mastodon profile.

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