Accessibility changes in EDS

[cmreddy1990]

The following enhancements were implemented in 6.5 but have not yet been implemented in EDS, as they are categorized as Day-2 changes by adobe team:

1. Enabled tabbing through navigation and footer elements using the "Tab" key for improved accessibility.
2. Added a "Skip to Content" button to allow users to bypass the navigation bar and directly access main content.
3. Ensured that textual content can receive focus via the "Tab" key to support keyboard navigation.
4. Updated Call-To-Action buttons to be recognized as "buttons" by screen readers instead of "links" for better semantic accuracy.
5. Enabled tabbing within video modals to allow users to pause or exit the modal using keyboard controls.