40665 Fix CupertinoTextField and TextField ToolbarOptions not changing (cla: yes, f: material design, framework, waiting for tree to go green)

40678 Extract some onPress methods (cla: yes, d: examples, framework, team, team: gallery, waiting for tree to go green)

40690 CupertinoPageScaffold dark mode (cla: yes, f: cupertino, framework, severe: API break)

40692 fix platform environment (cla: yes, tool)

40695 TextField docs for getting value (a: text input, cla: yes, d: api docs, f: material design, framework)

40697 Update keyboard maps (cla: yes, framework, team)

40701 add missing trailing commas (in examples/) (cla: yes, d: examples, framework, team, team: gallery)