### Description of this issue * Button overlays are not reachable via keyboard <img width="341" alt="meta-nav-popup" src="https://github.com/baloise/design-system/assets/172396366/45ff2150-49a9-46da-9d4a-a8186dcd1e6e"> ### How to fix it * Use aria-haspopup for buttons with overlays * Don't use aria-haspopup for button with link ### Additional Information Level A https://www.w3.org/WAI/WCAG21/Understanding/keyboard.html aria-haspopup: https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Attributes/aria-haspopup ### Code of Conduct - [X] I agree to follow this project's Code of Conduct