Enatega Customer App: There should be all the details related to the total amount on order checkout screen

Describe the bug

Some cost components (such as taxes, delivery fees, or discounts) may be missing.
The final total may be displayed without a clear breakdown.
Users might not be sure how the total amount was calculated.

Steps to Reproduce:

Add items to the cart and proceed to checkout.
Observe whether all cost components (subtotal, taxes, delivery fee, etc.) are displayed.

Expected behavior
The checkout screen should provide a detailed cost breakdown, including:
✅ Item subtotal
✅ Taxes (e.g., VAT, GST, Service Tax)
✅ Delivery charges (if applicable)
✅ Discounts or vouchers applied
✅ Final total amount to be paid

Desktop (please complete the following information):

OS: [e.g. iOS]
Browser [e.g. chrome, safari]
Version [e.g. 22]

Smartphone (please complete the following information):

Device: [e.g. All devices]
OS: [e.g. iOS8.1]
Browser [e.g. stock browser, safari]
Version [e.g. 22]

Start by locating the React Native customer-app checkout screen and tracing how its order total is assembled. Verify the displayed breakdown against the issue’s listed components—subtotal, taxes, delivery charges, discounts, and final total—and confirm the checkout view shows each applicable value clearly.

Written by the indexing model from the issue text.