The shrink step published by the nearest toolbar root.
Deliberately defaults to SHRINK_STEP.WIDE rather than throwing the way useMenuContext does:
every component that reads this is also usable standalone (a BookChapterControl in a dialog, a
story, a test), and those must keep rendering their full-width form when no toolbar is above
them.
The shrink step published by the nearest toolbar root.
Deliberately defaults to
SHRINK_STEP.WIDErather than throwing the wayuseMenuContextdoes: every component that reads this is also usable standalone (aBookChapterControlin a dialog, a story, a test), and those must keep rendering their full-width form when no toolbar is above them.