Enatega Customer App: Time mentioned on delivery screen should change in real time

Describe the bug
Time mentioned on delivery screen should change in real time as time past for the food delivery it isn't change until user go back to main page or reopen the app
To Reproduce
Steps to reproduce the behavior:

Go to Enatega Customer Application
Place an order, select a delivery time from restaurant
Now see the time on customer app the time isn't changing it keep showing the same minutes left.

Expected behavior
The time left for delivery should decrease continuously as time progresses.

Start in the Enatega Customer Application and reproduce the issue on the delivery screen after placing an order with a selected delivery time. Trace how the displayed minutes left are calculated and refreshed while the screen remains open. Done means the remaining delivery time decreases continuously without returning to the main page or reopening the app.

Written by the indexing model from the issue text.