fix: PageHead header alignment, analytics proxy, and infra improvements (#64)

🤖 Pull request created from `various-fixes` containing PageHead
breadcrumbs and navigation alignment fixes, Umami analytics proxy, and
infrastructure updates.

services/docs/assets/js/head/00-trusted-types.js

@@ -0,0 +1,11 @@
+(function () {
+  if (typeof window !== "undefined" && window.trustedTypes && window.trustedTypes.createPolicy) {
+    try {
+      window.trustedTypes.createPolicy("default", {
+        createHTML: function (s) { return s; },
+        createScript: function (s) { return s; },
+        createScriptURL: function (u) { return u; }
+      });
+    } catch (e) {}
+  }
+})();