69445 Standardize dartdoc macro names (a: accessibility, a: internationalization, a: tests, cla: yes, f: cupertino, f: material design, framework, team, waiting for tree to go green)

69451 Fix spelling errors (a: tests, cla: yes, f: cupertino, f: material design, framework, team)

69594 Fix textfield messing with user-supplied input formatter list (cla: yes, f: cupertino, f: material design, framework, waiting for tree to go green)

69620 Remove deprecated methods from BuildContext (cla: yes, f: cupertino, f: material design, framework, severe: API break, waiting for tree to go green)