61356 Updated dataTable API doc to explicitly point sorting (cla: yes, f: material design, framework, waiting for tree to go green)

61368 Add widget of the week videos to documentation (cla: yes, f: cupertino, f: material design, framework, waiting for tree to go green)

61371 Make ThemeData.shadowColor the default shadowColor in TextButton et al. (cla: yes, f: material design, framework, waiting for tree to go green)

61377 Revert “Adds semantics information for the popup menu item (#61258)” (cla: yes, f: material design, framework)

61385 reland “Adds semantics information for the popup menu item (#61258)” (a: accessibility, cla: yes, f: material design, framework, team, waiting for tree to go green)