fix(Message): properly compare attachments and embeds

backport #10282 djs v14

src/structures/Message.js

@@ -973,7 +973,9 @@ class Message extends Base {
       this.tts === message.tts &&
       this.nonce === message.nonce &&
       this.embeds.length === message.embeds.length &&
-      this.attachments.length === message.attachments.length;
+      this.attachments.size === message.attachments.size &&
+      this.attachments.every(attachment => message.attachments.has(attachment.id)) &&
+      this.embeds.every((embed, index) => embed.equals(message.embeds[index]));
 
     if (equal && rawData) {
       equal =