Fix cart total

[karrisanthoshigayatri]

Fix: Cart total price calculation issue
📌 Problem

The cart total price was not updating correctly when item quantities were changed. This led to incorrect subtotal values being shown to users during cart updates.

✅ Changes Made
Fixed cart total calculation logic in script.js
Ensured real-time recalculation on quantity change
Improved synchronization between cart state and UI
Verified accurate subtotal updates after each change
🎯 Result

Cart total price now updates correctly and consistently whenever product quantities are modified, ensuring accurate billing and better user experience.

[vercel]

@karrisanthoshigayatri is attempting to deploy a commit to the adithyansubramani1-1657's projects Team on Vercel.

A member of the Team first needs to authorize it.

[karrisanthoshigayatri]

The cart total calculation issue has been fixed and tested successfully.

The Vercel check is awaiting authorization because I do not have permission to deploy to the repository owner's Vercel team. This is unrelated to the code changes.

The implementation is complete and ready for review.