Fix next-intl locale, remove wave animations, and unoptimize hero image

Co-authored-by: dennis <dennis@konkol.net>

app/[locale]/layout.tsx

@@ -1,5 +1,5 @@
 import { NextIntlClientProvider } from "next-intl";
-import { getMessages } from "next-intl/server";
+import { getMessages, setRequestLocale } from "next-intl/server";
 import React from "react";
 
 export default async function LocaleLayout({
@@ -10,7 +10,9 @@ export default async function LocaleLayout({
   params: Promise<{ locale: string }>;
 }) {
   const { locale } = await params;
-  const messages = await getMessages({ locale });
+  // Ensure next-intl actually uses the route segment locale for this request.
+  setRequestLocale(locale);
+  const messages = await getMessages();
 
   return (
     <NextIntlClientProvider locale={locale} messages={messages}>