Convert package management to Yarn v2

[markerikson]

This PR:

• Switches the React-Redux package management process to use Yarn v2
  • Added Yarn "binary" and config file, and added a lockfile
  • Updated gitignore
  • Marked the website folder as a workspace
  • Switched the build steps to use Yarn
  • Removed the NPM lockfiles

[github-actions]

Size Change: 0 B

Total Size: 20.3 kB

ℹ️ View Unchanged

Filename	Size	Change
dist/react-redux.js	15.3 kB	0 B
dist/react-redux.min.js	5.02 kB	0 B

_{compressed-size-action}

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[timdorr]

I'm not familiar, but why does .yarn/releases/yarn-berry.cjs exist? That looks to be yarn itself, which I would assume to be redundant to your own local version.

[markerikson]

This is actually how Yarn v2 is designed to work: installations are per-project, and the Yarn "binary" is supposed to be committed to the repo.

Yarn v1 has to be installed globally, and then you have a config file in the repo that says "use v2". When you run yarn in the repo folder, v1 starts, looks at the config file, sees "v2", and bootstraps the execution of v2 from there.

It's admittedly kinda goofy, but it works.

[timdorr]

This shouldn't be needed if we're using node-modules above. The PNP linker is disabled, so this package shouldn't have any effect.