recently-hovered lasts EventHandlerHoverConfig.hoverGracePeriodMS, then clears on its own
unless the feature is hovered or clicked again first. The SDK's own layers draw it as no state;
read it to keep something shown while the pointer travels, as the entry points of places do.
The state a feature carries in
properties.eventState: the user event it is in, orrecently-hoveredfor a moment after the pointer leaves it.