OCPBUGS-38860: Collapse/Expand Feature Added, Removal Option Removed in Version 4.16

[lokanandaprabhu]

Fixes: https://issues.redhat.com/browse/OCPBUGS-38860

Analysis / Root cause: From OCP 4.16, getting started section was changed to use expandable section of PatternFly and the removal option was removed.

Solution Description: Added removal option for getting started section in Add page of developer perspective and in Cluster overview page.

Screen shots / Gifs for design review:

https://github.com/user-attachments/assets/0f032e47-ea4c-4183-ac3b-4ef686c76518

Unit test coverage report: NA

Test setup:

1. Go to Web console. Click on the "Getting started resources." 
2. Then you can expand and collapse this tab.
3. But there is no option to directly remove this tab.  

Browser conformance:

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