57605 fix navigator observer announcement order (cla: yes, framework, waiting for tree to go green)

57628 Add mouse cursor API to widgets (phase 1) (cla: yes, f: material design, framework)

57644 Adds physics to the TabBar (#57416) (cla: yes, f: material design, framework, waiting for tree to go green)

57670 Add code example for CustomScrollView on how to make it grow in two directions along its scroll axis (cla: yes, framework, waiting for tree to go green)

57696 Functionality to check handlers set on platform channels (a: tests, cla: yes, framework, waiting for tree to go green)

57733 #57730 - Support custom shapes for ListTiles (cla: yes, f: material design, framework, waiting for tree to go green)