🐛 footer: replace KubeStellar Console leftovers with Hive Commons links

[clubanderson]

Summary

• replace docs footer KubeStellar Console copy with Hive Commons project/community copy
• update footer columns, social links, docs metadata, and localized site metadata
• add footer copy/link regression coverage

Verification

• npm ci
• npm run lint
• npm run test -- DocsFooter.copy.test.ts
• npm run check-links
• npm run test
• npm run build
• Playwright screenshots: ~/hive-work/docs-shots/footer-dark-desktop.png, footer-light-desktop.png, footer-dark-mobile.png, footer-light-mobile.png

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[clubanderson]

/lgtm

[clubanderson]

/approve

[kubestellar-prow]

@clubanderson: you cannot LGTM your own PR.

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/lgtm

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[kubestellar-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: clubanderson

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