Capture and its destinations live on one line now

The quick-capture box and its destination buttons were on two separate lines. Our design committee folded them into a single composer — the way Linear, Raycast, and Superhuman do their command bars:

• Type on the left; the Inbox and Today buttons now sit on the right of the same box, divided by a hairline. The focus highlight wraps the whole thing as one object.
• Today picked up its signature gold star, so the two destinations are easy to tell apart at a glance — and the keyboard shortcuts still show on desktop (Enter → Inbox, Shift+Enter → Today).
• On phones the two buttons tuck onto a second row inside the box with comfortable tap targets, so nothing gets cramped.