Convert all presets to TypeScript

[mxstbr]

No description provided.

[mxstbr]

These build failure logs are especially unhelpful 🤔

$ microbundle --no-compress
Build "typography" to dist:
       2.2 kB: index.js.gz
       1.9 kB: index.js.br
      2.13 kB: index.esm.js.gz
      1.84 kB: index.esm.js.br
      2.36 kB: index.umd.js.gz
      2.05 kB: index.umd.js.br
Done in 4.88s.

Received "killed" signal

From these support posts on the CircleCI forum it sounds like that means the process is running out of memory?! How's that possible while building a handful of packages?

[jxnblk]

👍 on the actions setup. We can cleanup the circle ci config after the currently open PRs are merged

Overall LGTM