Description of problem:

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

 # <steps>

Actual results:

The rounded corners on the Catalog, Extensions plugin, and Home page cards (and other pages) are not consistent with each other.

Expected results:

All rounded corners should be unified across the application to ensure a consistent design based on the PatternFly card component guidelines .

Reproducibility (Always/Intermittent/Only Once):

Build Details:

Additional info (Such as Logs, Screenshots, etc):

Test day (line 49)