Convert chatroom response to use a custom type

Assets/Scripts/Types/ChatroomMessage.cs

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+using UnityEngine.Scripting;
+using Newtonsoft.Json;
+using System.Numerics;
+using Newtonsoft.Json.Linq;
+
+[Preserve]
+public class ChatroomMessage {
+  [Preserve]
+  [JsonProperty("username")]
+  public string Username { get; set; }
+
+  [Preserve]
+  [JsonProperty("userid")]
+  public BigInteger UserID { get; set; }
+
+  [Preserve]
+  [JsonProperty("content")]
+  public string Content { get; set; }
+
+  [Preserve]
+  [JsonProperty("id")]
+  public BigInteger ID { get; set; }
+
+  [Preserve]
+  [JsonProperty("icon")]
+  public int Icon { get; set; }
+
+  [Preserve]
+  [JsonProperty("overlay")]
+  public int Overlay { get; set; }
+
+  [Preserve]
+  [JsonProperty("birdColor")]
+  public JArray BirdColor { get; set; }
+
+  [Preserve]
+  [JsonProperty("overlayColor")]
+  public JArray OverlayColor { get; set; }
+}

Assets/Scripts/Types/ChatroomMessage.cs.meta

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+fileFormatVersion: 2
+guid: 723ad85187921a8b780f6cd1cf09327f