🛒 Implement Shopping Cart Component

[Pupler]

Task Description

Create a persistent shopping cart that displays added medicines, calculates totals, and allows item management.

Requirements:

1. Cart Component (Cart.tsx) with:
   • List of added medicines (name, price, quantity)
   • Total price calculation
   • Remove item functionality
   • Clear all button
2. Cart State Management using React Context or Zustand
3. Cart Icon in header with item count badge

Acceptance Criteria:

• Cart displays all added medicines with correct quantities
• Total price updates automatically
• Items can be removed individually or all at once
• Cart icon shows real-time item count

Technical Details:

• File: src/components/Cart/Cart.tsx
• State Management: React Context (src/context/CartContext.tsx)
• Icons: Cart icon with counter badge