[Woo POS] Swipe back gesture on POS

[staskus]

Add support of swipe back gesture on POS. Muscle memory expects it to work when:

1. Navigating from variable products to products list
2. Navigating from checkout to products list

[dangermattic]

🚫 Please add a type label (e.g. type: enhancement) and a feature label (e.g. feature: stats) to this issue.