Add model at the beginning in FileUploader

package.json

@@ -1,7 +1,7 @@
 {
   "name": "grapesjs",
   "description": "Free and Open Source Web Builder Framework",
-  "version": "0.9.46",
+  "version": "0.9.48",
   "author": "Artur Arseniev",
   "license": "BSD-3-Clause",
   "homepage": "http://grapesjs.com",

src/asset_manager/view/FileUploader.js

@@ -75,7 +75,7 @@ module.exports = Backbone.View.extend({
     em && em.trigger('asset:upload:response', json);
 
     if (config.autoAdd && target) {
-      target.add(json.data);
+      target.add(json.data, {at: 0});
     }
 
     this.onUploadEnd(text);