Adds Webpack support and removes the use for Grunt

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

use scss

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

fix build, add babel, fix annotations

fixes (and improvements !) for baggy

add live reload & environments & eslint & theme fixes

app/Resources/static/themes/baggy/js/shortcuts/main.js

@@ -1,3 +1,6 @@
+import $ from 'jquery';
+import Mousetrap from 'mousetrap';
+
 $(document).ready(() => {
   Mousetrap.bind('s', () => {
     $('#search').trigger('click');