message: add: new EditMessage#embeds
diff: @@ -29,6 +29,12 @@ export async function editMessage(channelId: bigint, messageId: bigint, content:
  validateComponents(content.components);
  }
  + // TODO: v12 remove
  + if (content.embed) content.embeds = [content.embed, ...(content.embeds || [])];
  + if (content.embeds && content.embeds.length > 10) {
  + content.embeds.splice(10);
  + }
  +
  if (content.content && content.content.length > 2000) {
  throw new Error(Errors.MESSAGE_MAX_LENGTH);
  }
  