Import individual Firebase SDK components

[sampl]

Console warning:

It looks like you're using the development build of the Firebase JS SDK. When deploying Firebase apps to production, it is advisable to only import the individual SDK components you intend to use.

For the module builds, these are available in the following manner (replace with the name of a component - i.e. auth, database, etc):

CommonJS Modules: const firebase = require('firebase/app'); require('firebase/');

ES Modules: import firebase from 'firebase/app'; import 'firebase/';

[sampl]

https://stackoverflow.com/questions/50707211/warning-it-looks-like-youre-using-the-development-build-of-the-firebase-js-sdk

[sampl]

done https://github.com/sampl/firefly/commit/899e4a034e7ef87d95f3d7c2a41ce187d7be2698