Similar to how we've updated Popover to use floating-ui for autoAlign positioning, the Dropdown needs to have this as well.

At a high level this includes:

• Adding an autoAlign prop to Dropdown that should turn off most/all listbox styling
• This might also require altering the ListBox and it's related components as well, adding autoAlign to those components to turn off styling.
• When autoAlign is used, only the top or bottom alignment options should be used
• Add an autoAlign story to the
• Once complete, validate that Dropdown is no longer clipped by modals or any other parent container with overflow: hidden - document this in storybook for review (can be removed before merging)
• Ideally this could also include some new abstractions of common code shared between the floating-ui implementation of Popover and Dropdown, to be further used when adding floating-ui functionality to other components.