Search - Advanced Search : Action cannot be performed by keyboard alone

URL to the page

https://instenv-10949-s8ch.instenv.internal.atlassian.com/#recently-worked

Steps to Reproduce

1. Open URL to the page
2. Navigate and activate "Search".
3. Navigate to "Advanced search" and activate.
4. navigate to input field such as "CONTRIBUTOR" and "IN SPACE" add contributor and space
5. Observe that user cannot access "remove creator" button using keyboard alone.

Screenshot

Actual Behaviour

When user attempts to remove "CONTRIBUTOR" or "SPACE"  since, remove link is missing keyboard support  as tabindex="-1" is given to link element. keyboard only users cannot use the functionality of removing "contributor" or "space".

Expected Result

When user attempts to remove "CONTRIBUTOR" or "SPACE" remove link should be provided with keyboard support. modify the scripts such that remove link receives keyboard focus and  would make sure keyboard only users can perform remove "contributor" or "space" functionality.

Bug Ref: 724864