feat: re-organize file, add IsCloseButtonVisible option.

src/Ursa/Controls/Dialog/Options/OverlayDialogOptions.cs

@@ -0,0 +1,28 @@
+namespace Ursa.Controls;
+
+public enum HorizontalPosition
+{
+    Left,
+    Center,
+    Right
+}
+
+public enum VerticalPosition
+{
+    Top,
+    Center,
+    Bottom
+}
+
+public class OverlayDialogOptions
+{
+    public bool CanClickOnMaskToClose { get; set; } = false;
+    public HorizontalPosition HorizontalAnchor { get; set; } = HorizontalPosition.Center;
+    public VerticalPosition VerticalAnchor { get; set; } = VerticalPosition.Center;
+    public double? HorizontalOffset { get; set; } = null;
+    public double? VerticalOffset { get; set; } = null;
+    public DialogMode Mode { get; set; } = DialogMode.None;
+    public DialogButton Buttons { get; set; } = DialogButton.OKCancel;
+    public string? Title { get; set; } = null;
+    public bool IsCloseButtonVisible { get; set; } = true;
+}