Add React compiler plugin

[billyjanitsch]

React now recommends that all projects enable the new compiler linter plugin, although it's still in beta. This doesn't mean enabling the compiler itself, it's just a lint rule to catch React rule violations that will cause the compiler to de-opt (and potentially otherwise cause bugs).

I have a few hesitations about including this in our standard config:

1. Because it's still a prerelease, we'd pin to an exact version, which means that we'd need to update it frequently. So maybe our projects should depend on it directly and add it to their config manually until there's a stable release?
2. It depends on Babel under the hood, which we've just moved away from. OTOH, the compiler itself is currently also implemented as a Babel plugin so we'll have to reintroduce Babel anyway to use the compiler. This is unfortunate but there's not much we can do about it; hopefully they release alternative bindings in the future.

Putting this up for feedback.

[billyjanitsch]

We've decided for now to inline this in individual projects until it's out of prerelease.