Use Webpack Aliases (#3711)

* Adds aliases to Webpack Build

* Use `ui` Webpack alias

* Use `views` alias

* Use `modals` aliase

* Use `providers` aliase

* Use `contracts` aliase

* Use '~' aliase

* from `ui` to from `~/ui`

* from  to from

* from `modals` to from `~/modals`

* from `providers` to from `~/redux/providers`

* from `contracts` to from `~/contracts`

* Updated Webpack App config

js/src/ui/MethodDecoding/methodDecoding.js

@@ -20,7 +20,7 @@ import { connect } from 'react-redux';
 import { bindActionCreators } from 'redux';
 import CircularProgress from 'material-ui/CircularProgress';
 
-import Contracts from '../../contracts';
+import Contracts from '~/contracts';
 import { Input, InputAddress } from '../Form';
 
 import styles from './methodDecoding.css';