message: update DiscordMessage interface JSDocs
diff: @@ -961,7 +961,10 @@ export interface DiscordMessage {
  id: string;
  /** id of the channel the message was sent in */
  channel_id: string;
  - /** id of the guild the message was sent in */
  + /**
  + * id of the guild the message was sent in
  + * Note: For MESSAGE_CREATE and MESSAGE_UPDATE events, the message object may not contain a guild_id or member field since the events are sent directly to the receiving user and the bot who sent the message, rather than being sent through the guild like non-ephemeral messages.
  + */
  guild_id?: string;
  /**
  * The author of this message (not guaranteed to be a valid user)
  