[NUI] Fix to set Actions center aligned in AlertDialog

Actions are center aligned in AlertDialog.

diff --git a/src/Tizen.NUI.Components/Controls/AlertDialog.cs b/src/Tizen.NUI.Components/Controls/AlertDialog.cs
index a89f29d..3b9ce22 100755 (executable)
--- a/src/Tizen.NUI.Components/Controls/AlertDialog.cs
+++ b/src/Tizen.NUI.Components/Controls/AlertDialog.cs
@@ -554,6 +554,7 @@ namespace Tizen.NUI.Components
                 Layout = new LinearLayout()
                 {
                     LinearOrientation = LinearLayout.Orientation.Horizontal,
+                    LinearAlignment = LinearLayout.Alignment.Center,
                 },
             };
         }