chore: Add CornerRadius

src/Uno.UI/UI/Xaml/Style/Generic/Generic.xaml

@@ -202,6 +202,7 @@
 										  Content="{TemplateBinding Content}"
 										  ContentTransitions="{TemplateBinding ContentTransitions}"
 										  ContentTemplate="{TemplateBinding ContentTemplate}"
+										  CornerRadius="{TemplateBinding CornerRadius}"
 										  Padding="{TemplateBinding Padding}"
 										  HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
 										  VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"