analytics: replace pirsch with clarity

apps/dashboard/src/app.html

@@ -43,7 +43,13 @@
 		-->
   <script src="https://cdn.plyr.io/3.7.3/plyr.js"></script>
 
-  <script defer src="https://api.pirsch.io/pa.js" id="pianjs" data-code="Kf54oK5mREZBVSImBUecRZNiydDH4bXg"></script>
+  <script type="text/javascript">
+    (function (c, l, a, r, i, t, y) {
+      c[a] = c[a] || function () { (c[a].q = c[a].q || []).push(arguments) };
+      t = l.createElement(r); t.async = 1; t.src = "https://www.clarity.ms/tag/" + i;
+      y = l.getElementsByTagName(r)[0]; y.parentNode.insertBefore(t, y);
+    })(window, document, "clarity", "script", "mh45jq3ghx");
+  </script>
 
   %sveltekit.head%
 </head>