Complete overhaul to make the component easier to use & more powerful. Contains breaking changes.

• Exposes multiple focus utilities to consumers (focus trap, focus by id, blur, key listener)
• Updated demo
• v1 version with the use of actions (that was deprecated) is now removed

Version 2.0:

- Added the AccessiblePopupContent block - simply wrap your popup content with this block and your popup will become accessible by keyboard!

Added demo application to showcase the component functionality