CAMS-436: Dropdown menu accessibility

[fmaddenflx]

Purpose

Make sure Dropdown menu follows all accessibility rules

Major Changes

Rules followed for Dropdown Menu component:

• https://www.w3.org/WAI/ARIA/apg/patterns/menu-button/
• https://www.w3.org/WAI/ARIA/apg/patterns/menubar/

for more information see https://docs.google.com/document/d/1jWB0gHGiKyAIsX-4o5PQQfbxQgs-bMT_wsGOdyEPA2c/edit?tab=t.0

Testing/Validation

100% test coverage

Definition of Done:

• [x] Acceptance criteria met - The system meets all acceptance criteria
• [x] Feature toggles created - Features that are deployed but not released have toggles
• [x] Design QA passed - All visual UI looks and works the way it’s supposed to
• [x] Usability validated - Team ensures the working code is easy to use
• [x] Accessibility tests passed - System passes automated and manual accessibility tests and supports applicable devices
• [x] Code refactored for clarity - Developers can understand the work simply by reviewing the code
• [x] Dependency Rule followed - More important code doesn’t directly depend on less important code
• [x] Development debt eliminated - UX and code aligns to the team’s latest understanding of the domain
• [x] Source code merged - Code has been merged into the main branch
• [x] 90% unit test coverage achieved - Automated test coverage tools indicate coverage of >= 90%
• [x] Code reviewed - Code is reviewed by at least two other team members before being merged
• [x] Code quality checks passed - Code passes all automated quality checks
• [x] Security scans passed - Code passes expected scans for vulnerabilities and compliance issues
• [x] Threat model updated - The threat model incorporates new threats and remediations
• [x] Build process updated - Automated build process include code supporting the user story
• [x] Load/performance tests passed - Performance tests include the functionality of the user story
• [x] Documents are updated - All required documentation is up to date and version controlled
• [x] Code is deployed - Code is deployed to the highest production like environment