Unify routers and use lazy for app layouts

src/apps/stable/AppRouter.tsx

@@ -1,43 +0,0 @@
-import { History } from '@remix-run/router';
-import React from 'react';
-import { Outlet, RouterProvider, createHashRouter, useLocation } from 'react-router-dom';
-
-import { useLegacyRouterSync } from 'hooks/useLegacyRouterSync';
-import { STABLE_APP_ROUTES } from './routes/routes';
-import Backdrop from 'components/Backdrop';
-import AppHeader from 'components/AppHeader';
-import { DASHBOARD_APP_PATHS, DASHBOARD_APP_ROUTES } from 'apps/dashboard/routes/routes';
-import UserThemeProvider from 'themes/UserThemeProvider';
-
-const router = createHashRouter([{
-    element: <StableAppLayout />,
-    children: [
-        ...STABLE_APP_ROUTES,
-        ...DASHBOARD_APP_ROUTES
-    ]
-}]);
-
-export default function StableAppRouter({ history }: Readonly<{ history: History }>) {
-    useLegacyRouterSync({ router, history });
-
-    return <RouterProvider router={router} />;
-}
-
-/**
- * Layout component that renders legacy components required on all pages.
- * NOTE: The app will crash if these get removed from the DOM.
- */
-function StableAppLayout() {
-    const location = useLocation();
-    const isNewLayoutPath = Object.values(DASHBOARD_APP_PATHS)
-        .some(path => location.pathname.startsWith(`/${path}`));
-
-    return (
-        <UserThemeProvider>
-            <Backdrop />
-            <AppHeader isHidden={isNewLayoutPath} />
-
-            <Outlet />
-        </UserThemeProvider>
-    );
-}

src/apps/stable/routes/routes.tsx

@@ -16,7 +16,7 @@ import { LEGACY_PUBLIC_ROUTES, LEGACY_USER_ROUTES } from './legacyRoutes';
 export const STABLE_APP_ROUTES: RouteObject[] = [
     {
         path: '/*',
-        element: <AppLayout />,
+        Component: AppLayout,
         children: [
             {
                 /* User routes */