fix for reported and confirmed level mismatch of detail (#26967)

specification/cognitiveservices/OpenAI.Inference/models/completions/chat_messages.tsp

@@ -62,19 +62,19 @@ model ChatMessageImageContentItem extends ChatMessageContentItem {
   @doc("An internet location, which must be accessible to the model,from which the image may be retrieved.")
   @projectedName("json", "image_url")
   imageUrl: ChatMessageImageUrl;
-
-  @doc("""
-  The evaluation quality setting to use, which controls relative prioritization of speed, token consumption, and
-  accuracy.
-  """)
-  detail?: ChatMessageImageDetailLevel;
 }
 
 @doc("An internet location from which the model may retrieve an image.")
 @added(ServiceApiVersions.v2023_12_01_Preview)
 model ChatMessageImageUrl {
   @doc("The URL of the image.")
   url: url;
+
+  @doc("""
+  The evaluation quality setting to use, which controls relative prioritization of speed, token consumption, and
+  accuracy.
+  """)
+  detail?: ChatMessageImageDetailLevel;
 }
 
 @discriminator("role")