An editor should be able to queue up a number of cards created in advance to self-publish on a schedule.
[ ] option to provide a future publish date
[ ] scheduler shouldn't be necessary: API queries should simply pull cards with a future publish date once we reach that point in the future; but sanity-check that this is true when this card is implemented in case the way the mobile app API queries changes before then.
An editor should be able to queue up a number of cards created in advance to self-publish on a schedule.