Fixes responsive actions being visible when they shouldn't

What does this MR do and why?

Fixes the responsive actions dropdown being visible in the widget extension when no actions exist.

Closes #342620 (closed)

Screenshots or screen recordings

How to set up and validate locally

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.