Add floating-ui to `@carbon/react` ComboBox

[tay1orjones]

This issue is for implementing floating-ui within ComboBox. This will be very similar to the implementation of floating-ui in Dropdown, #15865

The high level tasks are

• Add an experimental autoAlign prop
• Add the useFloating hook, only provide a config object when autoAlign, an empty config object when !autoAlign
• Set the refs.setReference on the trigger
• Set the refs.setFloating on the floating element (listbox)
• Apply floatingStyles to the refs.floating.current using CSSOM
• Modify styles as needed by adding a new auto align class and use :not()