优化更新代码，添加界面功能并整合

WPFluent/Controls/AutoSuggestBox/AutoSuggestBoxQuerySubmittedEventArgs.cs

@@ -0,0 +1,17 @@
+
+
+
+// ReSharper disable once CheckNamespace
+namespace WPFluent.Controls;
+
+/// <summary>
+/// Provides event data for the <see cref="AutoSuggestBox.QuerySubmitted"/> event.
+/// </summary>
+public sealed class AutoSuggestBoxQuerySubmittedEventArgs : RoutedEventArgs
+{
+    public AutoSuggestBoxQuerySubmittedEventArgs(RoutedEvent eventArgs, object sender) : base(eventArgs, sender)
+    {
+    }
+
+    public required string QueryText { get; init; }
+}