fix: OpenCvImage render clipping

GSS2.UI.Core/OpenCvImage.cs

@@ -258,6 +258,8 @@ public class OpenCvImage : Control
     }
 
     public override void Render(DrawingContext context)
+    {
+        using (context.PushClip(new Rect(Bounds.Size)))
         {
             context.FillRectangle(new SolidColorBrush(Background), new Rect(0, 0, Bounds.Width, Bounds.Height));
             if (_bitmap is null)
@@ -272,11 +274,16 @@ public class OpenCvImage : Control
 
             var drawWidth = _bitmap.PixelSize.Width * sx;
             var drawHeight = _bitmap.PixelSize.Height * sy;
-        var destRect = new Rect((Bounds.Width - drawWidth) / 2 + _panX, (Bounds.Height - drawHeight) / 2 + _panY, drawWidth, drawHeight);
+            var destRect = new Rect(
+                (Bounds.Width - drawWidth) / 2 + _panX,
+                (Bounds.Height - drawHeight) / 2 + _panY,
+                drawWidth, drawHeight
+            );
 
             var srcRect = ComputeSourceRect(TileMode, _bitmap.PixelSize.Width, _bitmap.PixelSize.Height);
 
             context.DrawImage(_bitmap, srcRect, destRect);
+        }
 
         base.Render(context);
     }