Set IconButton.visualDensity default to VisualDensity.standard by @QuncCccccc in https://github.com/flutter/flutter/pull/109349

Added documentation for AppBar actions by @QuncCccccc in https://github.com/flutter/flutter/pull/109351

Revert “Set IconButton.visualDensity default to VisualDensity.standard” by @QuncCccccc in https://github.com/flutter/flutter/pull/109421

Reland: Fix Android platform view creation flow by @stuartmorgan in https://github.com/flutter/flutter/pull/109405

Keep dirty manipulations private to Element base class by @goderbauer in https://github.com/flutter/flutter/pull/109401