Support environment vars in Moose projects natively

[okane16]

Currently you need to run npm install dotenv

• Ideal DX is to replicate how vercel and vite offer which is handle it out of the box.

[linear[bot]]

514-1149 How do we do environment variables? I've been npm installing dotenv but with vercel and vite, they handle it out of the box. This is just a developer frustration we don't want to waste time on.