Add command npm_ci

[TheLazzziest]

Would you like to consider a possibility of adding a command npm_ci ?

Here is the reason why I am asking for this. I am going to use your package in the external library https://github.com/gulliverbms/django_grapesjs. This library will be used on production in some other end-user projects. In order not to break accidentally some client-side dependencies during the installation process, I want to make a lock file in the library, and roll out updates relying upon it. In this way, it becomes more robust and predictable from the perspective of the installation of third-party libraries. Here is the link for making clear some aspects of such approach: https://stackoverflow.com/questions/52499617/what-is-the-difference-between-npm-install-and-npm-ci.