Let's go to the mall!

Features

• feat(note): the ⋮ turns a list into a shopping list, and back (#309)
• feat(list): the shopping-list subtype, with a quantity per item (#309)
• feat(list): the add row scrolls the list to the new item (#309)
• feat(list): an item is deleted from the row, and Undo puts it back (#309)

Other

• chore(release): 0.1.2
• docs(list): the list notes guide, and the pages that pointed elsewhere (#309)
• docs(design): the list notes mockups (#309)

Full Changelog: v0.1.1...v0.1.2