Separate css & js into text variants

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

assets/js/common/tabs.js

@@ -0,0 +1,7 @@
+function tabsInNewPage() {
+  var links = document.getElementsByTagName("article")[0].querySelectorAll('a');
+  var a = new RegExp('/' + window.location.host + '/');
+  links.forEach(link => !a.test(link.href) && link.setAttribute("target", "_blank"));
+}
+
+tabsInNewPage();