Support for mobile, and desktop

In order to build desktop and mobile apps, you need [Cordova](https://cordova.apache.org) make sure it all works with Cordova and their are instructions. Technically you don't have to have Cordova, but ATM I think everything that allows JS, CSS, and HTML to be embedded into a mobile or desk top app, is built on top of Cordova (i.e. ionic, phonegap, etc)

However it does seem that there is a new player worth investigating: https://capacitor.ionicframework.com