feat: add settings menu

src/i18n/index.d.ts

@@ -1,9 +1,11 @@
 import "i18next";
 
-import type { resources } from "../../public/locales/en.d.ts";
+import resources from "./resources";
 
 declare module "i18next" {
   interface CustomTypeOptions {
     resources: { translation: typeof resources };
+    strictKeyChecks: true;
+    enableSelector: true;
   }
 }