feat: make sure value is initialized after elements loaded.

src/Ursa/Controls/Rating/Rating.cs

@@ -8,6 +8,7 @@ using Avalonia.Controls.Primitives;
 using Avalonia.Controls.Templates;
 using Avalonia.Data;
 using Avalonia.Input;
+using Avalonia.Interactivity;
 
 namespace Ursa.Controls;
 
@@ -192,6 +193,12 @@ public class Rating : TemplatedControl
         }
     }
 
+    protected override void OnLoaded(RoutedEventArgs e)
+    {
+        base.OnLoaded(e);
+        AdjustWidth(Value);
+    }
+
     public void Preview(RatingCharacter o)
     {
         var index = Items.IndexOf(o);