feat: add interactive landing page visualizations

[vaishnavikhatri3]

Description

This PR enhances the VidyaSetu landing page by introducing interactive student progress visualizations to make the homepage more engaging and showcase the platform's learning analytics capabilities.

Changes Made

• Added animated progress tracking components
• Added sample student performance analytics cards
• Added quiz performance visualization sections
• Added learning streak indicators
• Improved visual representation of student learning progress
• Enhanced overall landing page engagement and user experience

Benefits

• Makes the landing page more interactive and dynamic
• Demonstrates platform capabilities before user signup
• Helps students better understand progress tracking features
• Improves first impressions and user engagement

Issue Reference

Closes #385

[vercel]

@vaishnavikhatri3 is attempting to deploy a commit to the Adarsh's projects Team on Vercel.

A member of the Team first needs to authorize it.

[MRIARC-08]

@vaishnavikhatri3 I can’t merge or send this to manual UI review yet because it has technical blockers.

Local checks:

• pnpm test passes: 8 files / 35 tests.
• pnpm exec tsc --noEmit fails in src/components/QuizPerformancePreview.tsx: the custom results prop conflicts with the native HTML results attribute from React.ComponentProps<"div">.
• Focused ESLint on the touched landing/visualization files fails with many Prettier issues plus warnings such as unused state/imports and unescaped text.

Please fix the TypeScript prop collision, run the repo formatter on all touched files, and remove unused code. Since this is a visible landing-page UI change, it will still need maintainer manual design/color review before merge.