add i18n (#239)

src/i18n/index.ts

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) Contributors to the Suwayomi project
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+import { use } from 'i18next';
+import { initReactI18next } from 'react-i18next';
+import resources from 'i18n/translations';
+import LanguageDetector from 'i18next-browser-languagedetector';
+
+const i18n = use(initReactI18next)
+    .use(LanguageDetector)
+    .init({
+        resources,
+
+        fallbackLng: 'en',
+        interpolation: {
+            escapeValue: false,
+        },
+        debug: true,
+    });
+
+export default i18n;