Newly Added Coupon Should Appear Immediately After Clicking "Save"

Describe the bug
When a new coupon is added in the Enatega Admin Dashboard, it should be displayed in the coupon list immediately after clicking the "Save" button, without requiring a page reload.

To Reproduce

Open the Enatega app.
Navigate to the Coupons section.
Add a new coupon.
Click the "Save" button to save the coupon.
Observe the coupon list.
Expected behavior
The newly added coupon should appear in the coupon list immediately after clicking "Save" without the need to reload the page or navigate away.

Actual Result:
The newly added coupon does not appear in the coupon list until the page is manually reloaded or the user navigates away and returns.

Desktop (please complete the following information):

OS: Windows
Browser Chrome

Start in the Enatega Admin Dashboard's Coupons section and trace what happens after the Save button is clicked and how the coupon list is populated. Reproduce the issue by adding a coupon, then verify that the new coupon appears immediately without a reload or navigation away.

Written by the indexing model from the issue text.