[Enhancement]: Update run command to work with builds from build folder

[cmather]

The run command only works for development now. It would be nice if we could also run a production build from it from the build/ folder. A couple of changes would be required:

1. Use regular node to run the process instead of the meteor cli
2. Run it out of my-project/build/bundle/main.js
3. Add Meteor settings to METEOR_SETTINGS env variable
4. Run npm install automatically on the bundle/server folder (check build README for exact folder)

The start.sh shell script I created a while back is an example.