[Performance] Implement lazy loading for Lottie animation JSON files

[magic-peach]

Overview

The three Lottie animation files (spinner.json, success.json, upload.json) are imported statically. They should be loaded lazily to reduce initial bundle size.

Implementation

// In LottiePlayer.tsx or parent
const animationData = await import('../lib/lottie/spinner.json')

Or use dynamic imports with React.lazy for the entire LottiePlayer component.

Acceptance Criteria

• Lottie JSON loaded on demand
• Initial bundle size reduced
• No visible loading delay for animations

[ahana4banerjee]

I would like to work on this. Please assign it to me

[magic-peach]

@ahana4banerjee please star the repo