fix: correct GoatCounter pageviews extraction (#2420)

Author: kungfux

_includes/pageviews/goatcounter.html

@@ -10,7 +10,7 @@
       fetch(url)
         .then((response) => response.json())
         .then((data) => {
-          const count = data.count.replace(/\s/g, '');
+          const count = data.count.replace(/\D/g, '');
           pv.innerText = new Intl.NumberFormat().format(count);
         })
         .catch((error) => {