WCAG - Keyboard Navigation

[milospp]

VIVO GitHub issue

What does this pull request do?

This PR adds full keyboard support for the sortable list used to reorder authors in a publication.
It improves accessibility by allowing users to reorder items without a mouse.

What's new?

Improved focus and navigation behavior for sortable
Added missing English strings to i18n

This GIF demonstrates keyboard support for the Sortable feature, designed to be accessible for users who rely on screen readers.

How should this be tested?

1. Open any research record that has authors.
2. Click the reorder authors icon/button.
3. Verify reordering with the mouse works fine.
4. Test reordering with the keyboard

• Use Arrow Up/Down to select author
• Use Shift + Arrow Up/Down to move the selected author up or down

5. Test it with the Screen Reader

• On macOS, enable VoiceOver with Command + F5

Additional Notes:

Keyboard navigation is also improved in those tooltip PR:
Linked Vitro PR
Linked Vitro PR

Interested parties

@VIVO-project/vivo-committers

Reviewers' expertise

Candidates for reviewing this PR should have some of the following expertises:

1. HTML, CSS, JavaScript