We now have a consolidated source of truth for whether the UI should us
dark mode to accomodate a light icon color. This is a recoil selector
that derives from iconColorAtom.
In addition, we renamed styleQueryAtom -> iconStyleAtom for consistency.
This patch adds throttling to events emitted by the native color-picker,
preventing noticeable lag caused by rapid state updates. It is currently
throttled to one event per 100ms, but we may want to play with this
value in the future! For not it feels smooth.
