message: add: new CreateMessage#embeds
diff: @@ -34,7 +34,13 @@ export async function sendMessage(channelId: bigint, content: string | CreateMes
  const requiredPerms: Set<PermissionStrings> = new Set(["SEND_MESSAGES", "VIEW_CHANNEL"]);
  if (content.tts) requiredPerms.add("SEND_TTS_MESSAGES");
  - if (content.embed) requiredPerms.add("EMBED_LINKS");
  + // TODO: v12 remove
  + if (content.embed) content.embeds = [content.embed, ...(content.embeds || [])];
  + if (content.embeds?.length) requiredPerms.add("EMBED_LINKS");
  + if (content.embeds && content.embeds.length > 10) {
  + content.embeds.splice(10);
  + }
  +
  if (content.messageReference?.messageId || content.allowedMentions?.repliedUser) {
  requiredPerms.add("READ_MESSAGE_HISTORY");
  }
  