React Suspense and Lazy LoadingPREMIUM

I need to implement code splitting and lazy loading in my React app.

**Application Details:**
- Framework: [CRA/Vite/Next.js]
- Current bundle size: [if known]
- Number of routes: [X]
- Heavy components: [list them]

**Loading UI Preferences:**
- Skeleton screens: [yes/no]
- Spinners: [style preference]
- Progressive…