Add package.json scripts

[jakeecolution]

I don't know how you did it before but this is the only way I could get vite to build the development server. I did a basic comparison between this repo and the vitejs.dev common app install process.

[StephanoAH]

I had the same error and fixed it by adding the scripts to package.json. You can replicate the problem running npm vite src, and will get the unknown command error.

[lmiller1990]

Hi @StephanoAH, since vite is an executable you probably want npx vite src. yarn does this automatically.