- remove click-area --> move styles to host::before
- reduce css so that extending styles makes sense. Merge .btn with host
- reduce the template and remove the if else construction inside the template
- hide focus styles if they're not needed, for example, when an element receives focus via the mouse.
- improve __clickDelegationHandler. Use current slotted native button instead of create new one
- fix vertical align when 2 buttons are inline and one has icon. Example included.
- add min-with to ensure target size for mobile, not only height
- add test to check event.target in all situations (inside and outside form)
