fix: cupertino tabbar sliding (#605)

fix: added for mobile too

fix: cupertino tabbar sliding

test: android dispatcher for selection indicator

Revert "test: android dispatcher for selection indicator"

This reverts commit e23a3fb.

revert

fix: cupertino tabbar sliding

refactor: some style attributes

fix: cupertino tabbar sliding

fix: adding back template

fix: put template last

fix: reverting changes + height fix

fix: cupertino tabbar sliding

src/Uno.Toolkit.UI/Controls/TabBar/TabBar.xaml

@@ -47,6 +47,7 @@
 	<x:Double x:Key="TabBarHeightOrWidth">64</x:Double>
 	<x:Double x:Key="TabBarItemIconHeight">16</x:Double>
 	<x:Double x:Key="TabBarItemIconWidth">16</x:Double>
+	<x:Double x:Key="TabBarCornerRadius">8</x:Double>
 	<Thickness x:Key="TabBarItemContentMargin">0,0,0,12</Thickness>
 	<Thickness x:Key="TabBarItemContentOnlyMargin">12,0</Thickness>
 	<Duration x:Key="TabBarIndicatorAnimationDuration">0:0:0.25</Duration>
@@ -64,13 +65,15 @@
 		</Setter>
 		<Setter Property="ItemContainerStyle" Value="{StaticResource DefaultTabBarItemStyle}" />
 		<Setter Property="SelectionIndicatorPresenterStyle" Value="{StaticResource DefaultTabBarSelectionIndicatorPresenterStyle}" />
+		<Setter Property="CornerRadius" Value="{ThemeResource TabBarCornerRadius}"/>
 		<Setter Property="Template">
 			<Setter.Value>
 				<ControlTemplate TargetType="utu:TabBar">
 					<Grid x:Name="TabBarGrid"
 						  Background="{TemplateBinding Background}"
 						  BorderBrush="{TemplateBinding BorderBrush}"
-						  BorderThickness="{TemplateBinding BorderThickness}">
+						  BorderThickness="{TemplateBinding BorderThickness}"
+						  CornerRadius="{TemplateBinding CornerRadius}">
 						<VisualStateManager.VisualStateGroups>
 							<VisualStateGroup x:Name="OrientationStates">
 								<VisualState x:Name="Horizontal">