Do no serialize every property as a string

Author: arnaudleclerc

samples/AzureMapsControl.Sample/Pages/Layers/SymbolLayerWithFeatures.razor

@@ -17,7 +17,7 @@
         var feature = new AzureMapsControl.Components.Atlas.Feature<AzureMapsControl.Components.Atlas.Point>(new AzureMapsControl.Components.Atlas.Point(
                     new AzureMapsControl.Components.Atlas.Position(-122.13284, 47.63699)
                 ), new Dictionary<string, object> {
-                { "title", new DateTime(2021, 6, 3) },
+                { "title", "Cafeteria" },
                 { "subtitle", "Building 40"}
                 });
 

src/AzureMapsControl.Components/Atlas/Feature.cs

@@ -87,7 +87,7 @@ public override void Write(Utf8JsonWriter writer, IDictionary<string, object> va
                 }
                 else
                 {
-                    writer.WriteStringValue(JsonSerializer.Serialize(kvp.Value));
+                    JsonSerializer.Serialize(writer, kvp.Value);
                 }
             }
             writer.WriteEndObject();