* Honor heading styles in Cart and Checkout blocks
* Replace Panel with DisclosureWidget and remove Card
* Remove panel-style from main entry
* Rename DisclosureWidget props
* Simplify TitleTag assign
* Add aria-expanded attribute
* Rename DisclosureWidget to Panel
* Make Panel button clickable area smaller
* Fix specificity issues with Twenty Twenty
* Reset italics in reset-typography mixin
* Make C&C titles font size large
* Add padding to shipping options when in the sidebar