Description

In order to assist with the PatternFly6 upgrade, converting all redhat-cloud-services/frontend-components will ensure that all components will have the same style.
 
The purpose of this story is to convert all @redhat-cloud-services/frontend-components/PageHeader references in the code to corresponding PF components.

Success Criteria

• Areas where this component is used are identified
• Areas where the component is used are tested to ensure it looks and behaves as expected
• (Technical) There are no imports to @redhat-cloud-services/frontend-components/PageHeader in the code base

Out of Scope

• Modifying files that are located in a "do_not_use" directory
• Any changes or additions to behavior