Tab navigation is not working correctly on Safari – only 3 elements receive focus

[alegontarz]

Describe the bug

When using the Tab key to navigate through the page in Safari, only a few UI elements receive focus:

• The main search bar
• The author name filter input
• The language switch icon

All other interactive elements (e.g., buttons, links, other input fields) are skipped or not reachable via keyboard navigation, which breaks accessibility and usability standards.

To Reproduce

Steps to reproduce the behavior:

1. Go to https://sandbox.dspace.org/home on Safari browser
2. Use the Tab key to navigate through the interface.
3. Observe that only three elements get focus:

• Main search input
• Author filter input
• Language switch icon

4. No other focusable elements are reachable.

Expected behavior

All interactive and focusable elements (e.g., buttons, links, form inputs) should be accessible via the Tab key.