Add leadfeeder script (#1439)

gatsby-ssr.js

@@ -14,8 +14,13 @@ const onRenderBody = ({ setPostBodyComponents }) => {
     (function(){var w=window;var ic=w.Intercom;if(typeof ic==="function"){ic('reattach_activator');ic('update',w.intercomSettings);}else{var d=document;var i=function(){i.c(arguments);};i.q=[];i.c=function(args){i.q.push(args);};w.Intercom=i;var l=function(){var s=d.createElement('script');s.type='text/javascript';s.async=true;s.src='https://widget.intercom.io/widget/${INTERCOM_APP_ID}';var x=d.getElementsByTagName('script')[0];x.parentNode.insertBefore(s,x);};if(document.readyState==='complete'){l();}else if(w.attachEvent){w.attachEvent('onload',l);}else{w.addEventListener('load',l,false);}}})();
   `;
 
+  const leadfeederHTML = `
+    (function(ss,ex){ window.ldfdr=window.ldfdr||function(){(ldfdr._q=ldfdr._q||[]).push([].slice.call(arguments));}; (function(d,s){ fs=d.getElementsByTagName(s)[0]; function ce(src){ var cs=d.createElement(s); cs.src=src; cs.async=1; fs.parentNode.insertBefore(cs,fs); }; ce('https://sc.lfeeder.com/lftracker_v1_'+ss+(ex?'_'+ex:'')+'.js'); })(document,'script'); })('kn9Eq4RLP5k8RlvP');
+  `;
+
   return setPostBodyComponents([
     <script key="intercom-messenger" dangerouslySetInnerHTML={{ __html: intercomMessengerHTML }} />,
+    <script key="leadfeeder" dangerouslySetInnerHTML={{ __html: leadfeederHTML }} />,
   ]);
 };