chore: add dev build scripts (#13)

[NoopDog]

No description provided.

[hunterckx]

• When running a build locally, the npm start script no longer works -- seems like we need to do that a different way if we're using output: "export" (the error message says to use the serve package)
• Another good thing for building locally would be to have out in the gitignore -- I seem to have gone a bit too minimal there (and with the prettierignore and eslintignore)
• In the data catalog build script, there's a comment referencing AnVIL that should presumably be changed

[hunterckx]

Looks good to me!