Issue #23: Accessibility Testing

[Vivaanfbcmc]

Description

Implement automated accessibility testing to ensure the dashboard is accessible to all users.

Requirements

• Set up axe-core for automated accessibility testing
• Create accessibility test suites
• Implement keyboard navigation testing
• Add screen reader compatibility testing
• Create color contrast testing
• Add accessibility regression testing

Acceptance Criteria

• Accessibility issues are automatically detected
• Keyboard navigation is fully tested
• Screen reader compatibility is verified
• Color contrast meets standards
• Accessibility regressions are prevented

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