77497 Update ClampingScrollSimulation to better match Android (cla: yes, framework, waiting for tree to go green)

77606 [Docs] RouteObserver cannot subscribe ModalRoute (cla: yes, d: api docs, d: examples, documentation, framework, waiting for tree to go green)

77608 Provide caret rect to text input plugin (cla: yes, framework, waiting for tree to go green)

77612 Fixed  Action code sample in the documentation had a bug  issue #77591 (cla: yes, framework, waiting for tree to go green)

77652 Removed MaterialApp accentColor dependency. (cla: yes, f: material design, framework)

77666 DropdownItems with a null value should still display its child (cla: yes, f: material design, framework, waiting for tree to go green)