Include a 'tsc' check in CI #1780
Description
It's possible for TypeScript to locally detect errors (with typescript-language-server) that are not detected in the build (with Microbundle). Most recently, in zeux/meshoptimizer#997. It might be best to include a call to tsc in the CI process so that TypeScript does checks explicitly. I'm less sure about why it fails, or doesn't, within Microbundle.
The /docs package has some dependencies that are not compatible with "moduleResolution": "nodenext", so I might need to change the moduleResolution setting for that package, or update those dependencies.