Enable pagefind only in production (not localhost)

Author: kdmsnr

_includes/footer.html

@@ -49,7 +49,8 @@ <h3 class="footer-heading">{{ site.title }}</h3>
         <p class="text">{{ site.description }}</p>
       </div>
     </div>
-{% if jekyll.environment == "production" %}
+
+{% unless site.url contains "localhost" %}
 <link href="/pagefind/pagefind-ui.css" rel="stylesheet">
 <script src="/pagefind/pagefind-ui.js"></script>
 <div id="search"></div>
@@ -58,7 +59,7 @@ <h3 class="footer-heading">{{ site.title }}</h3>
     new PagefindUI({ element: "#search", showSubResults: true });
   });
 </script>
-{% endif %}
+{% endunless %}
   </div>
 
 </footer>