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/contracts/badgereg.js

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Parity.  If not, see <http://www.gnu.org/licenses/>.
 
-import { bytesToHex, hex2Ascii } from '../api/util/format';
+import { bytesToHex, hex2Ascii } from '~/api/util/format';
 
 import ABI from './abi/certifier.json';