Integrating the main pattern repositories for Web

**Is your feature request related to a problem? Please describe.**
Ensuring we are building fully on existing work and the wider state of the art
**Describe the solution you'd like**
Integrate the following links, which add up to c.200 patterns:

https://sustainablewebdesign.org/

https://github.com/cnumr/best-practices

https://gr491.isit-europe.org/en/

https://almanac.httparchive.org/en/2022/sustainability

**Describe alternatives you've considered**
I looked for signs that these were already being considered but was not aware of any connections, although I might have missed them.

**Additional context**
At W3C there is a project underway to create a WCAG equivalent for sustainable web design, which seems to overlap closely with this project. Might be worth more formal collaboration (e.g. having people in each other's process)