adds aria-hidden to labels that show on small screens, to avoid scree…

[anandamaryon1]

Description

adds aria-hidden to labels in responsive tables that show on small screens, to avoid screenreaders calling out the labels/column headings twice

Checklist

I've tested this locally but do not have access to all of the software and platforms mentioned in out testing criteria. tested via VoiceOver on MacOS in Edge and Chrome. NEEDS MORE TESTING. (will arrange a session in the accessibility lab)

• [ ] Tested against our testing policy (Resolution, Browser & Accessibility)
• [x] Follows our coding standards and style guide
• [ ] CHANGELOG entry