89485 Fixed several typos (a: tests, team, tool, framework, f: material design, cla: yes, waiting for tree to go green)

89641 Fix document of the switch (framework, f: material design, cla: yes)

89667 Revert “Fix computeMinIntrinsicHeight in _RenderDecoration” (framework, f: material design, cla: yes, waiting for tree to go green)

89670 Revert “Implement operator = and hashcode for CupertinoThemeData” (framework, f: material design, cla: yes, f: cupertino)

89675 Revert “Fix computeMinIntrinsicHeight in _RenderDecoration (#87404)” … (framework, f: material design, cla: yes)