fix(NavigationView): Content top padding is not correct

- Fixes issue unoplatform#4793 where Content top padding was not correctly applied due to the fact that API information reported API availability matching SDK 17134, while Uno supports 19041
- Updates TabView FluentStyles style to be buildable with new contract support, because {Binding} is not supported in Style Setters yet (unoplatform#4826)

src/Uno.Foundation/Metadata/ApiInformation.shared.cs

@@ -16,8 +16,8 @@ public static bool IsApiContractPresent(string contractName, ushort majorVersion
 			switch (contractName)
 			{
 				case "Windows.Foundation.UniversalApiContract":
-					// See https://docs.microsoft.com/en-us/uwp/extension-sdks/windows-universal-sdk
-					return majorVersion <= 6; // SDK 10.0.17134.1
+					// See C:\Program Files (x86)\Windows Kits\10\References\[version]\Windows.Foundation.UniversalApiContract
+					return majorVersion <= 10; // SDK 10.0.19041.1
 
 				case "Uno.WinUI":
 #if HAS_UNO_WINUI

src/Uno.UI.FluentTheme/Resources/PriorityDefault/TabView.xaml

@@ -299,7 +299,8 @@
     <Style x:Name="TabViewButtonStyle" TargetType="Button">
         <Setter Property="Background" Value="{ThemeResource TabViewButtonBackground}"/>
         <Setter Property="Foreground" Value="{ThemeResource TabViewButtonForeground}"/>
-        <contract7Present:Setter Property="CornerRadius" Value="{Binding Source={ThemeResource OverlayCornerRadius}, Converter={StaticResource TopCornerRadiusFilterConverter}}"/>
+		<contract7Present:Setter Property="CornerRadius" Value="4,4,0,0" />
+		<!--TODO: Uno enable when #4826 is fixed ="{Binding Source={ThemeResource OverlayCornerRadius}, Converter={StaticResource TopCornerRadiusFilterConverter}}"/>-->
         <Setter Property="FontSize" Value="11"/>
 		<Setter Property="FontFamily" Value="{ThemeResource SymbolThemeFontFamily}"/>
         <Setter Property="VerticalAlignment" Value="Bottom"/>

src/Uno.UI.FluentTheme/themeresources.xaml

@@ -20177,7 +20177,8 @@
   <Style x:Name="TabViewButtonStyle" TargetType="Button">
     <Setter Property="Background" Value="{ThemeResource TabViewButtonBackground}" />
     <Setter Property="Foreground" Value="{ThemeResource TabViewButtonForeground}" />
-    <contract7Present:Setter Property="CornerRadius" Value="{Binding Source={ThemeResource OverlayCornerRadius}, Converter={StaticResource TopCornerRadiusFilterConverter}}" />
+    <contract7Present:Setter Property="CornerRadius" Value="4,4,0,0" />
+    <!--TODO: Uno enable when #4826 is fixed ="{Binding Source={ThemeResource OverlayCornerRadius}, Converter={StaticResource TopCornerRadiusFilterConverter}}"/>-->
     <Setter Property="FontSize" Value="11" />
     <Setter Property="FontFamily" Value="{ThemeResource SymbolThemeFontFamily}" />
     <Setter Property="VerticalAlignment" Value="Bottom" />

src/Uno.UI/Microsoft/UI/Xaml/Controls/TabView/TabView.xaml

@@ -306,8 +306,8 @@
         <Setter Property="Background" Value="{ThemeResource TabViewButtonBackground}"/>
         <Setter Property="Foreground" Value="{ThemeResource TabViewButtonForeground}"/>
 		<Setter Property="CornerRadius" Value="4,4,0,0" />
-		<!--TODO: ="{Binding Source={ThemeResource OverlayCornerRadius}, Converter={StaticResource TopCornerRadiusFilterConverter}}"/>-->
-        <Setter Property="FontSize" Value="11"/>
+		<!--TODO: Uno enable when #4826 is fixed ="{Binding Source={ThemeResource OverlayCornerRadius}, Converter={StaticResource TopCornerRadiusFilterConverter}}"/>-->
+		<Setter Property="FontSize" Value="11"/>
 		<Setter Property="FontFamily" Value="{ThemeResource SymbolThemeFontFamily}"/>
         <Setter Property="VerticalAlignment" Value="Bottom"/>
         <Setter Property="Margin" Value="0,7,0,0"/>