Create project health/activity dashboard (big rock)

[kungfuchicken]

Create a page on the site that tracks recent development activity, and gives a status update on the health of current repos.

May involve a new plugin: https://docusaurus.io/docs/api/plugin-methods
May involve GitHub built-ins:

• https://docs.github.com/en/actions/monitoring-and-troubleshooting-workflows/adding-a-workflow-status-badge
• https://docs.github.com/en/actions/monitoring-and-troubleshooting-workflows/viewing-job-execution-time
  May involve external tools:
• https://backstage.io/docs/overview/what-is-backstage/
• https://patterns.innersourcecommons.org/p/innersource-portal
• https://github.com/SAP/project-portal-for-innersource
• https://quansight.com/