Hotfix for i18n where the detector was overriding localStorage (#439)

* Hotfix for i18n where the detector was overriding localStorage

* Please, pnpm, cooperate

frontend/src/index.tsx

@@ -1,6 +1,5 @@
 import { Navigation, Router, sleep } from 'decky-frontend-lib';
 import i18n from 'i18next';
-import LanguageDetector from 'i18next-browser-languagedetector';
 import Backend from 'i18next-http-backend';
 import { initReactI18next } from 'react-i18next';
 
@@ -42,7 +41,6 @@ declare global {
 
   i18n
     .use(Backend)
-    .use(LanguageDetector)
     .use(initReactI18next)
     .init({
       load: 'currentOnly',
@@ -51,6 +49,7 @@ declare global {
         lookupQuerystring: 'lng',
       },
       //debug: true,
+      lng: navigator.language,
       fallbackLng: 'en-US',
       interpolation: {
         escapeValue: true,