chore: rename demo files.

Author: NaBian

src/Shared/HandyControlDemo_Code/HandyControlDemo_Code.csproj

@@ -1,4 +1,4 @@
-<UserControl x:Class="HandyControlDemo.UserControl.AnimationPathDemoCtl"
+<UserControl x:Class="HandyControlDemo.UserControl.AnimationPathDemo"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              Background="{DynamicResource RegionBrush}"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

src/Shared/HandyControlDemo_Shared/HandyControlDemo_Shared.projitems

@@ -1,8 +1,8 @@
 namespace HandyControlDemo.UserControl;
 
-public partial class AnimationPathDemoCtl
+public partial class AnimationPathDemo
 {
-    public AnimationPathDemoCtl()
+    public AnimationPathDemo()
     {
         InitializeComponent();
     }