extract fathom snippet into separate partial template

layouts/404.html

@@ -50,18 +50,6 @@
       <h1>Welp, this is awkward... &#x1F633;</h1>
       <p>The file you asked for wasn't found in this neck of the woods. Please check the URL for mistakes and try again, or take your ball and <a href="{{ .Site.BaseURL }}">go home</a>.</p>
     </div>
-    <script>
-      (function(f, a, t, h, o, m){
-        a[h]=a[h]||function(){
-          (a[h].q=a[h].q||[]).push(arguments)
-        };
-        o=f.createElement('script'),
-        m=f.getElementsByTagName('script')[0];
-        o.async=1; o.src=t; o.id='fathom-script';
-        m.parentNode.insertBefore(o,m)
-      })(document, window, 'https://fathom.jarv.is/tracker.js', 'fathom');
-      fathom('set', 'siteId', 'DYCXU');
-      fathom('trackPageview');
-    </script>
+{{ if eq hugo.Environment "production" }}{{ partial "stats.html" . }}{{ end }}
   </body>
 </html>

layouts/partials/footer.html

@@ -1,16 +1,4 @@
-    {{ if eq hugo.Environment "production" }}<script>
-      (function(f, a, t, h, o, m){
-        a[h]=a[h]||function(){
-          (a[h].q=a[h].q||[]).push(arguments)
-        };
-        o=f.createElement('script'),
-        m=f.getElementsByTagName('script')[0];
-        o.async=1; o.src=t; o.id='fathom-script';
-        m.parentNode.insertBefore(o,m)
-      })(document, window, 'https://fathom.jarv.is/tracker.js', 'fathom');
-      fathom('set', 'siteId', 'DYCXU');
-      fathom('trackPageview');
-    </script>{{ end }}
+{{ if eq hugo.Environment "production" }}{{ partial "stats.html" . }}{{ end }}
   </body>
 </html>
 

layouts/partials/stats.html

@@ -0,0 +1,13 @@
+    <script>
+      (function(f, a, t, h, o, m){
+        a[h]=a[h]||function(){
+          (a[h].q=a[h].q||[]).push(arguments)
+        };
+        o=f.createElement('script'),
+        m=f.getElementsByTagName('script')[0];
+        o.async=1; o.src=t; o.id='fathom-script';
+        m.parentNode.insertBefore(o,m)
+      })(document, window, 'https://fathom.jarv.is/tracker.js', 'fathom');
+      fathom('set', 'siteId', 'DYCXU');
+      fathom('trackPageview');
+    </script>