Release 4.100.0

From a phone sweep of every site's home (11-02):

• A card's day as its cover. kit.card({ date }): a thing without a picture that happens on a day (a drop, an event, a deadline) shows the weekday and month with the day large, instead of the same calendar icon on every card. The day stays clear of the corner's price. Shoes' "Dropping this week" was a row of identical calendar icons.
• The aura's mark leaves the heading alone on a phone. On a phone the aura hero (sc-has-vis without an orbit) is a watermark behind the heading, and its mark landed at the end of a long heading: AI's read "one API.V", Download's and Watch's the same. The glow stays; the mark goes there (the navbar shows it). Computers keep it in its column.