Add pjax for faster page loads

js/radar.js

@@ -1,8 +1,16 @@
 import filter from './filter';
+import applyPjax from './pjax';
 
 const enhanceComponent = (selector, enhancer) => {
   const $filter = [].slice.call(document.querySelectorAll(selector));
   $filter.map(enhancer);
 }
 
-enhanceComponent('.js--filter', filter);
+const enhanceComponents = () => {
+  enhanceComponent('.js--filter', filter);
+}
+
+applyPjax();
+
+enhanceComponents();
+document.addEventListener("pjax:success", enhanceComponents);