* Add admin option to show item list for keypad view
* Refactor common POS Vue mixin
* Add item list to POS keypad
* Add recent transactions to cart
* Keypad: Pass tip and discount as cart does
* Keypad and cart tests
* Improve offcanvas button
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Co-authored-by: Andrew Camilleri <evilkukka@gmail.com>
Based on #5413 and needs it to get merged first.
- Uses `--wrap-max-width` on `.public-page-wrap` rather than inner `.container` classes
- Applies `.tile` class to boxes and makes them connect to the edge of the screen below `400px` width.
