XAML: Use concrete class instead of abstract class for TargetType in Style

dotnet/maui#26672

Author: mfkl

src/LibVLCSharp/Platforms/Windows/VideoViewBase.cs

@@ -41,7 +41,7 @@ public abstract class VideoViewBase : Control, IVideoView
         /// </summary>
         public VideoViewBase()
         {
-            DefaultStyleKey = typeof(VideoViewBase);
+            DefaultStyleKey = typeof(VideoView);
 
             Unloaded += (s, e) => DestroySwapChain();
 #if !WINUI

src/LibVLCSharp/Themes/Generic.xaml

@@ -3,10 +3,10 @@
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:vlc="using:LibVLCSharp.Platforms.Windows">
 
-    <Style TargetType="vlc:VideoViewBase">
+    <Style TargetType="vlc:VideoView">
         <Setter Property="Template">
             <Setter.Value>
-                <ControlTemplate TargetType="vlc:VideoViewBase">
+                <ControlTemplate TargetType="vlc:VideoView">
                     <SwapChainPanel x:Name="SwapChainPanel" />
                 </ControlTemplate>
             </Setter.Value>