Optimistic UI cart enhancement

[scottyzen]

Cart Upgrade & Dedicated Cart Page

Enhances cart experience with instant feedback on updates and adds a full-featured cart page.

Key Changes

🎯 Optimistic UI

• Cart items update instantly when quantities change
• Buttons disable during server processing to prevent race conditions
• Clear loading states with visual feedback

🛒 New Cart Page (/cart)

• Responsive two-column layout with sticky order summary
• Full cart management with detailed totals
• Matches checkout page styling for consistency

✨ Enhanced Cart Drawer

• Added "View Cart" button for easy navigation
• Order summary displays subtotal, shipping, and discounts
• Loading overlay during updates

🔧 Technical

• Export optimisticPendingMutations from useCart() composable
• New isCartUpdating computed property tracks pending operations

🌍 Internationalization

• Added updating and viewCart translations across all 6 languages

[netlify]

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