New governance updates

[maneesha]

This PR does the following:

• Updates the Governance page to include our new Advisory Council and Board of Directors, based on what was provided by @kariljordan. This includes:
  • Descriptions, contact info and committee roles for AC & BoD
  • Contact info for AC & BoD
  • Profiles & headshots for AC & BoD members
  • Bylaws as PDF
• Updates templates that build the Governance page accordingly
• Updates references to the Executive Council to refer to the Board instead on other parts of the website (contact page, community page, etc.)
• This does not update historic references to the EC (for example, where we say what the Executive Council did something, because it was the EC doing it back then)

This should be merged on 1 Feb 2024 at the same time as the corresponding changes in the Handbook repo (PR not yet submitted)

[netlify]

✅ Deploy Preview for stupefied-einstein-5bde90 ready!

Name	Link
🔨 Latest commit	b2e1208
🔍 Latest deploy log	https://app.netlify.com/sites/stupefied-einstein-5bde90/deploys/65b8072d81644a0008c4850a
😎 Deploy Preview	https://deploy-preview-1771--stupefied-einstein-5bde90.netlify.app/governance
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[maneesha]

This should be merged at the same time as https://github.com/carpentries/docs.carpentries.org/pull/956

[kariljordan]

This looks beautiful. I appreciate your work on this.