try to patch fathom's script el to support SPAs

Author: guimachiavelli

fathom-data-attr.js

@@ -0,0 +1,12 @@
+const spaValue = "auto";
+
+function addDataAttr() {
+  const el = document.getElementById("fathom-script");
+  const dataSpaValue = el.dataset.spa;
+
+  if (dataSpaValue === undefined) {
+    el.dataset.spa = spaValue;
+  }
+}
+
+addDataAttr();