Revert "Update all CardList links to absolute and add guidance"

[alhananamal8-crypto]

Reverts #2486

---

Note

Converts CardList links to relative paths across docs, updates CONTRIBUTING and images guidance, fixes external partner/library URLs, and adjusts link-check config.

• Docs:
  • Convert CardList href values from absolute (/...) to relative (./... or section-relative) across developer-tools, services/reference/*, smart-accounts-kit, and versioned gator_versioned_docs pages.
  • Update CONTRIBUTING.md:
    • Revise docs directories and sidebar files list; remove the link-formatting section.
    • Update image directories list.
  • Fix external links:
    • Update ConnectKit URL to https://docs.family.co/connectkit in wallet/* pages.
    • Change 0xFury privacy link to https://0xfury.com/privacy.php (also add link-check disable markers where needed).
• Config:
  • .linkspector.yml: remove specific ignore patterns for web3onboard.thirdweb.com and 0xfury.com/privacy; keep allowed status codes.

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