chore: use file-scoped namespace

src/Shared/HandyControl_Shared/Media/Effects/GrayScaleEffect.cs

@@ -3,35 +3,34 @@ using System.Windows;
 using System.Windows.Media.Effects;
 using HandyControl.Data;
 
-namespace HandyControl.Media.Effects
+namespace HandyControl.Media.Effects;
+
+public class GrayScaleEffect : EffectBase
 {
-    public class GrayScaleEffect : EffectBase
+    private static readonly PixelShader Shader;
+
+    static GrayScaleEffect()
     {
-        private static readonly PixelShader Shader;
-
-        static GrayScaleEffect()
+        Shader = new PixelShader
         {
-            Shader = new PixelShader
-            {
-                UriSource = new Uri("pack://application:,,,/HandyControl;component/Resources/Effects/GrayScaleEffect.ps")
-            };
-        }
-
-        public GrayScaleEffect()
-        {
-            PixelShader = Shader;
-
-            UpdateShaderValue(InputProperty);
-            UpdateShaderValue(ScaleProperty);
-        }
-
-        public static readonly DependencyProperty ScaleProperty = DependencyProperty.Register(
-            "Scale", typeof(double), typeof(GrayScaleEffect), new PropertyMetadata(ValueBoxes.Double1Box, PixelShaderConstantCallback(0)));
-
-        public double Scale
-        {
-            get => (double) GetValue(ScaleProperty);
-            set => SetValue(ScaleProperty, value);
-        }
+            UriSource = new Uri("pack://application:,,,/HandyControl;component/Resources/Effects/GrayScaleEffect.ps")
+        };
     }
-}
+
+    public GrayScaleEffect()
+    {
+        PixelShader = Shader;
+
+        UpdateShaderValue(InputProperty);
+        UpdateShaderValue(ScaleProperty);
+    }
+
+    public static readonly DependencyProperty ScaleProperty = DependencyProperty.Register(
+        "Scale", typeof(double), typeof(GrayScaleEffect), new PropertyMetadata(ValueBoxes.Double1Box, PixelShaderConstantCallback(0)));
+
+    public double Scale
+    {
+        get => (double) GetValue(ScaleProperty);
+        set => SetValue(ScaleProperty, value);
+    }
+}