78757 [State Restoration] Code sample templates, migrate existing code samples (a: state restoration, cla: yes, d: api docs, f: cupertino, f: material design, framework, team)

78771 Removed TimePicker dependence on accentTextTheme. (cla: yes, f: material design, framework)

78815 Automatically activate testfield in macOS when receives accessibility… (cla: yes, f: cupertino, f: material design, framework, waiting for tree to go green)

78825 Revert “Fixed Buttons with icon RenderFlex overflow” (cla: yes, f: material design, framework, waiting for tree to go green)

78897 Add dart Fix for TextSelectionThemeData (cla: yes, f: material design, framework, team, waiting for tree to go green)