69795 Default Keyboard ScrollActions with PrimaryScrollController (a: desktop, cla: yes, f: cupertino, f: focus, f: material design, f: scrolling, framework, platform-web, severe: new feature, waiting for tree to go green)

70023 Revert “Migrate Flutter gallery test to null safety” (cla: yes, f: cupertino, f: material design, team, tool)

70116 Migrate Flutter Gallery test to null safety (cla: yes, f: cupertino, f: material design, team, tool)

70157 Update cupertino and material translations (a: internationalization, cla: yes, f: cupertino, f: material design)