feat: add i18n with ttag

assets/pages/NotFoundPage.tsx

@@ -1,11 +1,12 @@
 import {Result} from "antd";
 import React from "react";
+import { t } from 'ttag'
 
 
 export default function NotFoundPage() {
     return <Result
         status="404"
         title="404"
-        subTitle="Sorry, the page you visited does not exist."
+        subTitle={t`Sorry, the page you visited does not exist.`}
     />
 }