64638 Add sample code to DefaultTextStyleTransition (cla: yes, d: api docs, d: examples, documentation, framework, waiting for tree to go green)

64698 Added sample code to AnimatedAlign (cla: yes, d: api docs, d: examples, documentation, framework, waiting for tree to go green)

65817 Clarify the docs on what scrollUntilVisible does (a: tests, cla: yes, d: api docs, documentation, framework)

66048 Bump dartdoc to 0.34.0 (cla: yes, d: api docs, documentation, team, waiting for tree to go green)

66639 Further explain parent constraints in SizedBox (cla: yes, d: api docs, documentation, framework, waiting for tree to go green)

66834 GlobalKey docs improvement (cla: yes, d: api docs, documentation, framework)