add custom shadow clipping to demo

Author: ButchersBoy

MainDemo.Wpf/Shadows.xaml

@@ -60,9 +60,6 @@
             <materialDesign:Card materialDesign:ShadowAssist.ShadowDepth="Depth3" materialDesign:ShadowAssist.ShadowEdges="Bottom,Right" Padding="32">CUSTOM CLIP</materialDesign:Card>
             <materialDesign:Card materialDesign:ShadowAssist.ShadowDepth="Depth3" materialDesign:ShadowAssist.ShadowEdges="Top" Margin="16 0 0 0" Padding="32">CUSTOM CLIP</materialDesign:Card>
             <materialDesign:Card materialDesign:ShadowAssist.ShadowDepth="Depth3" materialDesign:ShadowAssist.ShadowEdges="Bottom,Left" Margin="16 0 0 0" Padding="32">CUSTOM CLIP</materialDesign:Card>
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-            
         </StackPanel>
-            
     </StackPanel>
 </UserControl>