77405 Fix typo in Windows template (cla: yes, team, tool, waiting for tree to go green)

77410 Fix missing root Scaffold check in ScaffoldMessenger  (cla: yes, f: material design, f: routes, framework, severe: crash, waiting for tree to go green)

77414 InteractiveViewer.builder (cla: yes, framework, waiting for tree to go green)

77419 fix Autovalidate enum references in fix data (cla: yes, cp: 2.0, cp: 2.0 completed, f: cupertino, f: material design, framework, waiting for tree to go green)

77420 Add debug_second_compile_millis benchmark metric (cla: yes, platform-android, platform-ios, team, team: benchmark, waiting for tree to go green)