Fix js/css import #2636

assets/css/app.scss

@@ -2,5 +2,12 @@
 @import "~@fortawesome/fontawesome-free/css/all.css";
 @import '~chosen-js/chosen.css';
 @import '~flag-icon-css/sass/flag-icon.scss';
-@import 'base.css';
+@import "~fullcalendar/dist/fullcalendar.css";
+
+@import "~select2/dist/css/select2.css";
+@import "~bootstrap-daterangepicker/daterangepicker.scss";
+@import "~bootstrap-select/dist/css/bootstrap-select.css";
 
+@import '~jquery-ui/themes/base/all.css';
+
+@import 'base.css';

assets/js/vendor.js

@@ -21,14 +21,10 @@ require("jquery.scrollbar");
 require("blueimp-file-upload");
 require("select2");
 require("timeago");
-require("select2/dist/css/select2.css");
 require('bootstrap-select/dist/js/bootstrap-select.js');
-require('bootstrap-select/dist/css/bootstrap-select.css');
-require('flag-icon-css/css/flag-icon.css');
+
 require("bootstrap-daterangepicker");
-require("bootstrap-daterangepicker/daterangepicker.scss");
 require("fullcalendar/dist/fullcalendar.js");
-require("fullcalendar/dist/fullcalendar.css");
 require("fullcalendar/dist/gcal.js");
 require("fullcalendar/dist/locale-all.js");
 
@@ -36,7 +32,6 @@ require("fullcalendar/dist/locale-all.js");
 
 // doesn't work with webpack added directly in /public/libs folder
 /*
-require("fullcalendar");
 require("pwstrength-bootstrap");
 
 require("js-cookie");