Meyer minor issues

[robotpony]

• [ ] Checkout (info page): the name/address fields are automatically copied over without checking “copy information”
• [ ] Checkout (info page): Can’t uncheck the “receive occasional emails from us” checkbox
• [ ] Checkout (info page): The fields don’t autofill like the user would expect, which can be problematic for shipping information
• [ ] Checkout: no nav bar, but there’s padding for it at the top of the page
• [ ] Product page: the page reloads when I select an option (like colour) from the dropdown menu
• [ ] Cart page: the quantity column isn’t aligned to the column’s header

Reported by a user in a slack channel, so may be missing required details.