switched to hashrouter, for the site to work on github pages

src/components/app/App.tsx

@@ -1,5 +1,5 @@
 import {useState} from 'react';
-import {BrowserRouter as Router, Route, Switch} from "react-router-dom";
+import {HashRouter as Router, Route, Switch} from "react-router-dom";
 import './App.css';
 import {IntlProvider} from "react-intl";
 import {deMessagesJSON, enMessagesJson, ruMessagesJSON} from "../../messages/messages";