chore: move i18n to util

web/src/util/i18n.js

@@ -0,0 +1,28 @@
+import i18n from 'i18next'
+import Backend from 'i18next-chained-backend'
+import LocalStorageBackend from 'i18next-localstorage-backend'
+import XHR from 'i18next-xhr-backend'
+import LanguageDetector from 'i18next-browser-languagedetector'
+import { initReactI18next } from 'react-i18next'
+
+i18n
+  .use(Backend)
+  .use(LanguageDetector)
+  .use(initReactI18next)
+  .init({
+    backend: {
+      backends: [LocalStorageBackend, XHR],
+      backendOptions: [
+        {
+          versions: { en: '1.3', ja: '1.3' },
+        },
+      ],
+    },
+    fallbackLng: 'en',
+    debug: false,
+    interpolation: {
+      escapeValue: false, // not needed for react as it escapes by default
+    },
+  })
+
+export default i18n