[6.1] Story: Migrate clinical-trials-listing-app

[adriancofie]

Description

Update clinical-trials-listing-app to consume @nciocpl/react-app-shared, replacing local Pager and other shared components.

Parent Issue: #EPIC_6

Sub-Tasks

• Install @nciocpl/react-app-shared
• Verify @nciocpl/ncids-css is present
• Replace Pager in src/views/Disease/Disease.jsx
• Replace Pager in src/views/Intervention/Intervention.jsx
• Replace Pager in src/views/Manual/Manual.jsx
• Create callback adapter if needed
• Update all imports
• Verify all unit tests pass
• Perform visual regression testing
• Remove local Pager component
• Move SCSS overrides to app-level styles
• Update documentation

Notes

• See detailed migration guide in SHARED_COMPONENT_LIBRARY_PLAN.md Appendix B
• Use adapter pattern for gradual migration