Implement Wishlist / Favorites Feature

[shubhagarwal1]

Issue Title 2: Implement Wishlist / Favorites Feature

Issue Description:

• Save Favorite Dishes or Vendors: Allow customers to save dishes or vendors to a wishlist for quick access later.
• Add and Remove Items from Wishlist: Provide the ability to easily add and remove items from the wishlist to personalize the shopping experience.

Acceptance Criteria:

1. Customers can add dishes and vendors to their wishlist from the product page.
2. Wishlist is easily accessible and organized for customers to view and manage.
3. Customers can remove items from the wishlist at any time.
4. Wishlist items are retained across sessions (persisted in the backend).

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