language i18n added and tested for server and client side

ServicesFrontEnd/frontend/next.config.mjs

@@ -0,0 +1,8 @@
+import createNextIntlPlugin from 'next-intl/plugin';
+
+const withNextIntl = createNextIntlPlugin('./src/i18n/messages.ts');
+
+/** @type {import('next').NextConfig} */
+const nextConfig = {};
+
+export default withNextIntl(nextConfig);