[missing] `cross-env` module is missing for setting up environment variables

[muskangupta-iitr]

Description

cross-env module is widely used npm package for setting up environment variables through single command. We can directly set environment variable from package.json file. For example:

'start:dev': 'cross-env NODE_ENV=development && gulp dev';
'test': 'cross-env NODE_ENV=test && mocha --timeout 100000'

The above command is for starting the development server and setting NODE_ENV variable to development.

I would like to work on this issue :smiley:

Settings

• OS: Linux (Ubuntu18.04)

[muskangupta-iitr]

@AdrianBZG @Nikhil-Vats Pls review!