feat(i18n): add support for multiple languages (#6270)

feat(users): add i18n to create access token

chore(app): remove test code

app/i18n.ts

@@ -0,0 +1,18 @@
+import i18n from 'i18next';
+import { initReactI18next } from 'react-i18next';
+import LanguageDetector from 'i18next-browser-languagedetector';
+import Backend from 'i18next-http-backend';
+
+i18n
+  .use(Backend)
+  .use(LanguageDetector)
+  .use(initReactI18next)
+  .init({
+    debug: true,
+    fallbackLng: 'en',
+    interpolation: {
+      escapeValue: false,
+    },
+  });
+
+export default i18n;