chore: use file-scoped namespace

src/Shared/HandyControl_Shared/Data/Args/MouseHookEventArgs.cs

@@ -1,12 +1,11 @@
 using System;
 using HandyControl.Tools.Interop;
 
-namespace HandyControl.Data
-{
-    internal class MouseHookEventArgs : EventArgs
-    {
-        public MouseHookMessageType MessageType { get; set; }
+namespace HandyControl.Data;
 
-        public InteropValues.POINT Point { get; set; }
-    }
-}
+internal class MouseHookEventArgs : EventArgs
+{
+    public MouseHookMessageType MessageType { get; set; }
+
+    public InteropValues.POINT Point { get; set; }
+}