feat(deps): upgrade Foundry and Circuit UI

[felixjung]

Addresses TL-122.

This PR upgrades Foundry to version 3.0.0 and Circuit to version 2.0.0, addressing any breaking changes in those dependencies and links to documentation in the README.

[connor-baer]

Thank you for these updates! 🙌

I was thinking of turning this project into a custom template for CRA. What do you think of that idea?

[connor-baer]

Also, when you merge this, please mark it as a breaking change so that it's released as a new major version.

[felixjung]

Template sounds cool. Didn't know they had that nowadays. Also just realized that the create-component script is not set up right. Will fix that.

[herberthenrique]

What are we missing to merge this? 🤔
cc @felixjung

[felixjung]

I need to fix the create-component script. Sorry. Will do so today.

[felixjung]

This is turning out more difficult than I had hoped. We install create-react-app at latest. The new version uses React 17, which is not compatible with Emotion 10's jsx transform (emotion-js/emotion#1970). I tried an older version, but that also has React 17. Will need to investigate this further. We'd need to explicitly configure the non-automatic runtime for React. Haven't investigated how to do that, yet.

[connor-baer]

@felixjung Emotion 10 now supports the new jsx transforms (here are the docs). When you have time, would you mind taking another look at this, please? 🙏

[felixjung]

Yes, will do. Already use them on my personal website. 🙃

[felixjung]

Closing in favor of #26.