perf(home): parallelize private visitor tracking

lib/config/server.ts

@@ -13,6 +13,14 @@ export function getCanonicalUrl() {
   return requiredEnvironmentUrl("NEXTAUTH_URL");
 }
 
+export function getVisitorTrackingConfig() {
+  return {
+    secret: readFeatureEnvironment("Visitor tracking", [
+      "NEXTAUTH_SECRET",
+    ] as const).NEXTAUTH_SECRET,
+  };
+}
+
 export function getDiscordServerConfig() {
   const config = readFeatureEnvironment("Discord", [
     "DISCORD_BOT_TOKEN",