Change IceCreamShop frontend to use Java backend

[github-actions]

Change IceCreamShop frontend to use Java backend

Acceptance Criteria:

All of the following refer to the frontend for IceCreamShop from team01.

• The IceCreamShopCreatePage has been updated to use the actual backend POST operation instead of the temporary local storage CRUD operations.
• The IceCreamShopEditPage has been updated to use the actual backend GET and PUT operations instead of the temporary local storage CRUD operations.
• The IceCreamShopIndexPage has been updated to use the actual backend GET PUT operations instead of the temporary local storage CRUD operations.
• The IceCreamShopDetailsPage has been updated to use the actual backend GET operations instead of the temporary local storage CRUD operations.
• The IceCreamShopTable has been updated to use the actual backend DELETE operation instead of the temporary local storage CRUD operations.
• The CRUD operations all impact the actual contents of the database for IceCreamShop

[nagpalishaan]

Kenny has first 3
Ishaan has last 3
api is /api/icecreamshop