feat(electron): onboarding at first launch logic for client and web (#5183)

- Added a simple abstraction of persistent storage class.
- Different persistence solutions are provided for web and client.
    - web: stored in localStorage
    - client: stored in the application directory as `.json` file
- Define persistent app-config schema
- Add a new hook that can interactive with persistent-app-config reactively

packages/frontend/core/src/router.ts

@@ -65,6 +65,10 @@ export const routes = [
     path: '/desktop-signin',
     lazy: () => import('./pages/desktop-signin'),
   },
+  {
+    path: '/onboarding',
+    lazy: () => import('./pages/onboarding'),
+  },
   {
     path: '*',
     lazy: () => import('./pages/404'),