The Menu Button is a button that displays a drop-down menu on hover,

click, or keyboard interaction. This can be used to select an action or

change settings for a piece of UI.
Menu Buttons can have a distinct Action Button, which will invoke an

action but will not show the drop-down menu. In this situation, the menu

is generally used for configuration or alternate (but related) actions.

Tested the component thoroughly in Storybook.
Unit tests pass.