feat: modernized web application

nextjs/src/components/I18nProvider.tsx

@@ -0,0 +1,10 @@
+'use client';
+
+import { I18nextProvider } from 'react-i18next';
+import type { ReactNode } from 'react';
+
+import i18n from '@/i18n/client';
+
+export function I18nProvider({ children }: { children: ReactNode }) {
+  return <I18nextProvider i18n={i18n}>{children}</I18nextProvider>;
+}