Feat/admin react (#6211)

* Added vite react admin ui.

* Added react i18next.

* Added pads manager.

* Fixed docker build.

* Fixed windows build.

* Fixed installOnWindows script.

* Install only if path exists.

admin/src/localization/i18n.ts

@@ -0,0 +1,57 @@
+import i18n from 'i18next'
+import {initReactI18next} from "react-i18next";
+import LanguageDetector from 'i18next-browser-languagedetector'
+
+
+import { BackendModule } from 'i18next';
+
+const LazyImportPlugin: BackendModule = {
+    type: 'backend',
+    init: function () {
+    },
+    read: async function (language, namespace, callback) {
+
+        let baseURL = import.meta.env.BASE_URL
+        if(namespace === "translation") {
+            // If default we load the translation file
+            baseURL+=`/locales/${language}.json`
+        } else {
+            // Else we load the former plugin translation file
+            baseURL+=`/${namespace}/${language}.json`
+        }
+
+        const localeJSON = await fetch(baseURL, {
+            cache: "force-cache"
+        })
+        let json;
+
+        try {
+            json = JSON.parse(await localeJSON.text())
+        } catch(e) {
+             callback(new Error("Error loading"), null);
+        }
+
+
+        callback(null, json);
+    },
+
+    save: function () {
+    },
+
+    create: function () {
+        /* save the missing translation */
+    },
+};
+
+i18n
+    .use(LanguageDetector)
+    .use(LazyImportPlugin)
+    .use(initReactI18next)
+    .init(
+        {
+            ns: ['translation','ep_admin_pads'],
+            fallbackLng: 'en'
+        }
+    )
+
+export default i18n