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/CopyToClipboard/copyToClipboard.js

@@ -23,7 +23,7 @@ import Clipboard from 'react-copy-to-clipboard';
 import CopyIcon from 'material-ui/svg-icons/content/content-copy';
 import Theme from '../Theme';
 
-import { showSnackbar } from '../../redux/providers/snackbarActions';
+import { showSnackbar } from '~/redux/providers/snackbarActions';
 
 const { textColor, disabledTextColor } = Theme.flatButton;