Add src/app/i18n.ts

src/app/i18n.ts

@@ -0,0 +1,13 @@
+import { notFound } from 'next/navigation';
+import { getRequestConfig } from 'next-intl/server';
+
+export const locales = ['en', 'fr', 'de', 'sv'];
+export const defaultLocale = 'en';
+
+export default getRequestConfig(async ({ locale }) => {
+  if (!locales.includes(locale as any)) notFound();
+
+  return {
+    messages: (await import(`../locales/${locale}.json`)).default
+  };
+});