Now, the inherited ScrollBehavior manages which devices can drag scrolling widgets
as specified by ScrollBehavior.dragDevices. This set of PointerDeviceKinds are
allowed to drag.

Description of change

This change fixed the unexpected ability to scroll by dragging with a mouse.

If you have relied on the previous behavior in your application, there are several ways to
control and configure this feature.

Extend ScrollBehavior, MaterialScrollBehavior, or CupertinoScrollBehavior
to modify the default behavior, overriding ScrollBehavior.dragDevices.

    
      With your own ScrollBehavior, you can apply it app-wide by setting
MaterialApp.scrollBehavior or CupertinoApp.scrollBehavior.
      Or, if you wish to only apply it to specific widgets, add a
ScrollConfiguration above the widget in question with your
custom ScrollBehavior.

Your scrollable widgets then inherit and reflect this behavior.