feat: Add Schema.org Structured Data to Enhance SEO and Search Visibility of Faucet

[barbaraperic]

Related Issues

This PR implements structured data markup using Schema.org vocabulary across the Lotus Faucet website pages to improve search engine visibility.

Proposed Changes

1. Added Organization schema to all pages (index, funds, and datacap) to establish consistent entity information
2. Includes key organization details:
   • Name: "Filecoin Lotus Calibration Faucet"
   • URL: https://faucet.calibnet.chainsafe-fil.io/
   • Logo: Filecoin logo reference
   • Description: Clear explanation of the faucet's purpose
   • Social/Related links through sameAs property (GitHub, ChainSafe, Filecoin, Slack)

WebPage Schema

1. Added specific WebPage schemas to individual pages (funds.html and datacap.html)
2. Each page includes:
   • Unique page name and description
   • URL specific to the page function
   • isPartOf relationship linking back to the main organization

Additional Info

Benefits

1. Enhanced Search Engine Understanding: Helps search engines better understand the website's structure and purpose
2. Rich Snippets: Enables potential rich snippets in search results
3. Better Content Organization: Clearly defines relationships between pages and the main organization

Checklist

Before you mark the PR ready for review, please make sure that:

• Commits have a clear commit message.
• PR title conforms with contribution conventions
• Update CHANGELOG.md or signal that this change does not need it per contribution conventions
• New features have usage guidelines and / or documentation updates in
  • Lotus Documentation
  • Discussion Tutorials
• Tests exist for new functionality or change in behavior
• CI is green

[github-actions]

Please update the PR title to match https://github.com/filecoin-project/lotus/blob/master/CONTRIBUTING.md#pr-title-conventions

[github-actions]

Please update the PR title to match https://github.com/filecoin-project/lotus/blob/master/CONTRIBUTING.md#pr-title-conventions

Title has been fixed