New Tailwind theme

Proposal

This may be belong in the Infima repo, but I strongly suggest Docusaurus consider Tailwind. Tailwind already solves for theming out of the box. It also gives developers much more freedom. You can still re-implement Infima's core classes with tailwind, so this actually wouldn't need to be a breaking change.

The benefits:

• Smaller CSS footprint
• Better theming
• Less custom CSS needed on other pages

Next Steps

• Start on a new Tailwind preset
• Get it to feature-parity with classic theme

Have you read the Contributing Guidelines on issues?

Yes