56906 more docs about diagnostics in release mode (cla: yes, framework)

56922 Bring back paste button hide behavior 2 (a: accessibility, cla: yes, f: cupertino, f: material design, framework, team)

56951 Revert “Bring back paste button hide behavior 2” (a: accessibility, cla: yes, f: cupertino, f: material design, framework, team)

56952 Add more documentation to addTimingsCallback (cla: yes, framework, waiting for tree to go green)

56956 ThemeData.brightness == ThemeData.colorScheme.brightness (cla: yes, f: material design, framework, waiting for tree to go green)

56968 setState() will call scheduleFrame() in post-frame callback now. (a: accessibility, cla: yes, framework, waiting for tree to go green)