Update libraries thanks to dependabot, fix some issues.

frontend/public/js/register.js

@@ -1,2 +1,2 @@
-(window.webpackJsonp=window.webpackJsonp||[]).push([[4],{206:function(n,o,w){n.exports=w(207)},207:function(n,o,w){"use strict";w.r(o);w(6),w(8);w(208)},208:function(n,o,w){window.$=window.jQuery=w(4),w(153)}},[[206,0,1]]]);
+(window.webpackJsonp=window.webpackJsonp||[]).push([[4],{206:function(n,o,w){n.exports=w(207)},207:function(n,o,w){"use strict";w.r(o);w(6),w(8);w(208)},208:function(n,o,w){window.$=window.jQuery=w(5),w(153)}},[[206,0,1]]]);
 //# sourceMappingURL=register.js.map

frontend/public/js/vendor.js.LICENSE.txt

@@ -76,6 +76,17 @@
  * http://jquery.org/license
  */
 
+/*! 
+ * portal-vue © Thorsten Lünborg, 2019 
+ * 
+ * Version: 2.1.7
+ * 
+ * LICENCE: MIT 
+ * 
+ * https://github.com/linusborg/portal-vue
+ * 
+*/
+
 /**!
  * @fileOverview Kickass library to create and place poppers near their reference elements.
  * @version 1.16.1