78672 Add fixes for [InputDecoration, InputDecorationTheme] hasFloatingPlaceholder -> floatingLabelBehavior (cla: yes, f: material design, framework, team, waiting for tree to go green)

78678 Update cluster. (cla: yes, team, team: infra)

78755 Typo fixes (a: internationalization, a: tests, cla: yes, f: cupertino, f: material design, framework, team, tool)

78757 [State Restoration] Code sample templates, migrate existing code samples (a: state restoration, cla: yes, d: api docs, f: cupertino, f: material design, framework, team)

78764 remove codesign.dart (cla: yes, team)