Fix/optimizations and cleanup of booking widget
* fix(BOOK-149):fixed issue with datepicker overflowing on months spanning more weeks
* fix(BOOK-149): added smooth scroll to age selector to avoid clipping the selector
* cleanup in trigger and css
* update to new Button componenet to fix missing focus indicator
* included color token in triggerbutton class instead
Approved-by: Bianca Widstam
Approved-by: Erik Tiekstra
4b67ffa7fd