message: fix(structures/thread): add missing props
diff: @@ -87,6 +87,8 @@ export class ThreadChannel extends GuildTextBasedChannel {
  messageCount!: number
  member?: ThreadMember
  members: ThreadMembersManager
  + slowmode: number = 0
  + owner!: UserResolvable
  constructor(client: Client, data: ThreadChannelPayload, guild: Guild) {
  super(client, data as any, guild)
  @@ -102,6 +104,8 @@ export class ThreadChannel extends GuildTextBasedChannel {
  data.member !== undefined
  ? new ThreadMember(this.client, data.member)
  : undefined
  + this.slowmode = data.rate_limit_per_user ?? this.slowmode
  + this.owner = new UserResolvable(this.client, data.owner_id) ?? this.owner_id
  }
  readFromData(data: any): this {
  