feat: improved TopBar and empty registration page

src/renderer/App.tsx

@@ -17,6 +17,7 @@ import { VersionsExplorer } from './pages/VersionsExplorer';
 import Profile from './pages/Profile';
 import Shop from './pages/Shop';
 import Marketplace from './pages/Marketplace';
+import { Registration } from './pages/Registration';
 
 const AuthCheck = ({ children }: { children: ReactNode }) => {
   const [isAuthenticated, setIsAuthenticated] = useState<boolean | null>(null);
@@ -127,6 +128,7 @@ const App = () => {
         <Notifier />
         <Routes>
           <Route path="/login" element={<Login />} />
+          <Route path="/registration" element={<Registration />} />
           <Route
             path="/"
             element={