Fix DblclickZoomInteraction not disabling double click zoom (#113) (#120)

.NET's camelCase JSON serializer converts DblclickZoomInteraction to
dblclickZoomInteraction (lowercase 'c' in click), but the Azure Maps SDK
expects dblClickZoomInteraction (capital 'C' in Click). The property was
silently ignored, so double click zoom was never disabled.

Fix by adding [JsonPropertyName("dblClickZoomInteraction")] to ensure
the correct key is sent to the SDK.

Fixes #113

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: arnaudleclerc

src/AzureMapsControl.Components/Map/UserInteractionOptions.cs

@@ -1,6 +1,7 @@
 namespace AzureMapsControl.Components.Map
 {
     using System.Diagnostics.CodeAnalysis;
+    using System.Text.Json.Serialization;
 
     [ExcludeFromCodeCoverage]
     public sealed class UserInteractionOptions
@@ -13,6 +14,7 @@ public sealed class UserInteractionOptions
         /// <summary>
         /// Whether double left click will zoom the map inwards.
         /// </summary>
+        [JsonPropertyName("dblClickZoomInteraction")]
         public bool? DblclickZoomInteraction { get; set; }
 
         /// <summary>