[Update] Plugins: Add localization system.

src-ui/app/_app_controllers/PluginsController.jsx

@@ -1,9 +1,11 @@
 import React from "react";
 import clsx from "clsx";
+import * as reactI18next from "react-i18next";
 
 if (typeof window !== "undefined") {
     window.React = React;
     window.clsx = clsx;
+    window.reactI18next = reactI18next;
 }
 
 import { LoadPluginsController } from "./plugins_controllers/LoadPluginsController";