72316 Remove Scrollbar.isAlwaysShown assert based on Scrollbar.controller (a: quality, cla: yes, f: cupertino, f: material design, f: scrolling, framework, severe: new feature, waiting for tree to go green)

72741 Apply physics boundary to scrollbar dragging (a: quality, cla: yes, f: scrolling, framework, waiting for tree to go green)

73084 Improve the Scaffold.bottomSheet update behavior (a: quality, cla: yes, f: focus, f: material design, framework, waiting for tree to go green)

74093 ScaffoldMessenger only shows to root nested Scaffold (a: layout, a: quality, cla: yes, customer: money (g3), f: material design, framework, waiting for tree to go green, will affect goldens)

platform-web - 14 pull request(s)