Add Umami analytics script to the flasher layout.

Load tracking after interactive so production visits are counted without blocking first paint.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/[locale]/layout.tsx

@@ -1,5 +1,6 @@
 import type { Metadata } from "next";
 import { notFound } from "next/navigation";
+import Script from "next/script";
 import { NextIntlClientProvider, hasLocale } from "next-intl";
 import { getMessages, getTranslations, setRequestLocale } from "next-intl/server";
 import { DM_Sans, Syne } from "next/font/google";
@@ -76,6 +77,11 @@ export default async function LocaleLayout({ children, params }: Props) {
   return (
     <html lang={locale} className={`${dmSans.variable} ${syne.variable}`}>
       <body className="antialiased">
+        <Script
+          src="https://umami.dsx2020.com/script.js"
+          data-website-id="477bc497-9718-4b81-bc02-1fa539eb12e3"
+          strategy="afterInteractive"
+        />
         <NextIntlClientProvider messages={messages}>
           <div className="bg-grid" aria-hidden />
           <div className="bg-glow" aria-hidden />