ci: moves to pnpm

[gsimone]

• Takes the pnpmfile.cjs thing from Migrate to Pnpm #276

• Removes Cypress as we aren't really using

• Moves to pnpm as yarn 3 never felt good

• adds manypkg to lint and fix the package jsons

TODO

• Weird type error in plugins

closes #276

[changeset-bot]

⚠️ No Changeset found

Latest commit: 94e8933

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated
leva	✅ Ready (Inspect)	Visit Preview	Apr 26, 2022 at 5:34PM (UTC)

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 94e8933:

Sandbox	Source
leva-minimal	Configuration
leva-busy	Configuration
leva-scroll	Configuration
pmndrs/leva	Configuration
leva-ui	Configuration
leva-theme	Configuration
leva-transient	Configuration
leva-plugin-plot	Configuration
leva-plugin-bezier	Configuration
leva-plugin-spring	Configuration
leva-custom-plugin	Configuration

[dbismut]

Closing in favor of #412