OCPBUGS-32773: Values entered into the Instantiate Template form are automatically cleared

[lokanandaprabhu]

Fixes: https://issues.redhat.com/browse/OCPBUGS-32773

Analysis / Root cause: The input fields are always populated based on the API response and user entered values are getting cleared out

Solution Description: Added the check to not load data after 1st load to keep user entered information

Screen shots / Gifs for design review:

---BEFORE---

https://github.com/openshift/console/assets/102503482/c42d654a-bceb-48cb-9add-08fc7584d0c6

---AFTER---

https://github.com/openshift/console/assets/102503482/d93f83b7-5d0b-463e-b1cf-542251655adf

Unit test coverage report: NA

Test setup:

1. Log in with a non-administrator account.
2. Select a template from the developer catalog and click on Instantiate Template.
3. Enter values into the initially empty form.
4. Wait for several seconds, and the entered values will disappear.

Browser conformance:

• [x] Chrome
• [ ] Firefox
• [ ] Safari
• [ ] Edge