minimizeController property
Drives minimized from scrolling on the minimizable placement — the
equivalent of SwiftUI's .tabBarMinimizeBehavior(_:).
When supplied it owns the minimize state and minimized is ignored;
pass the same ScrollController to scrollController and to the scroll
view the bar floats over, or drive the controller from a
NotificationListener and leave scrollController null. See
GlassTabBarMinimizeController.
Implementation
final GlassTabBarMinimizeController? minimizeController;