Relay custom votes to a webhook (#18561)

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>
Co-authored-by: DrSmugleaf <drsmugleaf@gmail.com>

Content.Server/Discord/WebhookEmbed.cs

@@ -1,10 +1,13 @@
-using System.Text.Json.Serialization;
+using System.Text.Json.Serialization;
 
 namespace Content.Server.Discord;
 
 // https://discord.com/developers/docs/resources/channel#embed-object-embed-structure
 public struct WebhookEmbed
 {
+    [JsonPropertyName("title")]
+    public string Title { get; set; } = "";
+
     [JsonPropertyName("description")]
     public string Description { get; set; } = "";
 
@@ -14,6 +17,10 @@ public struct WebhookEmbed
     [JsonPropertyName("footer")]
     public WebhookEmbedFooter? Footer { get; set; } = null;
 
+
+    [JsonPropertyName("fields")]
+    public List<WebhookEmbedField> Fields { get; set; } = default!;
+
     public WebhookEmbed()
     {
     }