CDD-3441 WIP filter null pages

[MeganB-2]

Description

Fixes #CDD-

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Unit tests
• Playwright e2e tests
• Mobile responsiveness
• Accessibility (i.e. Lighthouse audit)
• Disabled JavaScript

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• Any styles in this change follow the 'STYLES.md' guide
• My changes are progressively enhanced with graceful degredagation for older browsers and non-JavaScript users
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[github-actions]

Unit tests coverage

Lines	Statements	Branches	Functions
	94.83% (4627/4879)	84.62% (1492/1763)	95.3% (852/894)

Tests	Skipped	Failures	Errors	Time
1730	0 💤	0 ❌	0 🔥	28.328s ⏱️

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud