Update Material for MkDocs

Feature request

🚀 Suggest ideas for new website features!

Checklist

• This issue is not a duplicate, I've searched the Issue Tracker
• This issue is not a question, I'm aware that I can submit questions via Mastodon, Twitter, Email, Reddit or Matrix
• This issue is a feature request, and not a bug report, content request, or anything other

What are you missing or what could be improved?

Update to the latest version of Material for MkDocs:

• check upgrade instructions
• update local development environment: pip install --upgrade mkdocs-material
• where relevant, update mkdocs.yml
• where relevant, update override templates: main.html, base.html, footer.html, header.html, source.html, toc.html
• replace main.xyz.min.css & main.xyz.min.css.map with latest version
• update requirements.txt

Do you have additional comments?

N/A