Load modules from nearest tailwindcss instance

[bradlc]

This PR updates the tailwindcss module resolution so that it won't look further up the tree after finding the first instance of tailwindcss

[garand]

I think this is breaking my setup. I have a project that pulls in a tailwind config from a separate package. Prior tov0.2.6 this was working, but now I'm getting an error that one of my plugin packages cannot be found, even though it's in the deps of my package that has the source tailwind config.

Let me know if that doesn't make sense...