CXX-1885 add NPS survey code

Author: kevinAlbs

docs/themes/mongodb/layouts/partials/assets/analytics.html

@@ -30,3 +30,10 @@
 
  gtag('config', 'UA-7301842-14');
 </script>
+
+<!-- NPS survey code-->
+<script type="text/javascript">
+ !function(e,t,r,n,a){if(!e[a]){for(var i=e[a]=[],s=0;s<r.length;s++){var c=r[s];i[c]=i[c]||function(e){return function(){var t=Array.prototype.slice.call(arguments);i.push([e,t])}}(c)}i.SNIPPET_VERSION="1.0.1";var o=t.createElement("script");o.type="text/javascript",o.async=!0,o.src="https://d2yyd1h5u9mauk.cloudfront.net/integrations/web/v1/library/"+n+"/"+a+".js";var l=t.getElementsByTagName("script")[0];l.parentNode.insertBefore(o,l)}}(window,document,["survey","reset","config","init","set","get","event","identify","track","page","screen","group","alias"],"Dk30CC86ba0nATlK","delighted");
+
+ delighted.survey();
+</script>