Use alias in demo app

Author: alvarosabu

dev/vue/App.vue

@@ -54,7 +54,7 @@ import {
   maxLength,
   url,
   /* } from '../dist/as-dynamic-forms.common'; */
-} from '../../src/index';
+} from '@/index';
 
 const data = () => ({
   formData: {},

dev/vue/styles/_vendors.scss

@@ -6,4 +6,4 @@
 $input-border-radius: 50px; */
 // @import '../../src/styles/themes/default.scss';
 
-@import '../../../src/styles/themes/material.scss';
+@import '@/styles/themes/material.scss';