More beautiful linear_gradient sample by @goderbauer in https://github.com/flutter/flutter/pull/99298

CupertinoSliverNavigationBar: Add example by @TahaTesser in https://github.com/flutter/flutter/pull/99384

Add material localizations for keyboard keys used for shortcut descriptions in menus. by @gspencergoog in https://github.com/flutter/flutter/pull/99020

Deprecate MaterialButtonWithIconMixin by @Piinks in https://github.com/flutter/flutter/pull/99088

Use PlatformDispatcher.instance over window where possible by @goderbauer in https://github.com/flutter/flutter/pull/99496

Reland clean up clipboard. by @chunhtai in https://github.com/flutter/flutter/pull/99363