app,create-app: migrate to wrapping <Navigate /> in a <Route />

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/app/src/App.tsx

@@ -145,7 +145,7 @@ const AppRouter = app.getRouter();
 
 const routes = (
   <FlatRoutes>
-    <Navigate key="/" to="catalog" />
+    <Route path="/" element={<Navigate to="catalog" />} />
     {/* TODO(rubenl): Move this to / once its more mature and components exist */}
     <Route path="/home" element={<HomepageCompositionRoot />}>
       {homePage}