chore: use file-scoped namespace

src/Shared/HandyControl_Shared/Controls/Slider/CompareSlider/CompareSlider.cs

@@ -1,26 +1,25 @@
 using System.Windows;
 using System.Windows.Controls;
 
-namespace HandyControl.Controls
+namespace HandyControl.Controls;
+
+public class CompareSlider : Slider
 {
-    public class CompareSlider : Slider
+    public static readonly DependencyProperty TargetContentProperty = DependencyProperty.Register(
+        "TargetContent", typeof(object), typeof(CompareSlider), new PropertyMetadata(default(object)));
+
+    public static readonly DependencyProperty SourceContentProperty = DependencyProperty.Register(
+        "SourceContent", typeof(object), typeof(CompareSlider), new PropertyMetadata(default(object)));
+
+    public object TargetContent
     {
-        public static readonly DependencyProperty TargetContentProperty = DependencyProperty.Register(
-            "TargetContent", typeof(object), typeof(CompareSlider), new PropertyMetadata(default(object)));
-
-        public static readonly DependencyProperty SourceContentProperty = DependencyProperty.Register(
-            "SourceContent", typeof(object), typeof(CompareSlider), new PropertyMetadata(default(object)));
-
-        public object TargetContent
-        {
-            get => GetValue(TargetContentProperty);
-            set => SetValue(TargetContentProperty, value);
-        }
-
-        public object SourceContent
-        {
-            get => GetValue(SourceContentProperty);
-            set => SetValue(SourceContentProperty, value);
-        }
+        get => GetValue(TargetContentProperty);
+        set => SetValue(TargetContentProperty, value);
     }
-}
+
+    public object SourceContent
+    {
+        get => GetValue(SourceContentProperty);
+        set => SetValue(SourceContentProperty, value);
+    }
+}