Method unpinChat

api/server/models/User.ts:426–426

({ userId, chatId }: { userId: string; chatId: string })

  pinChat({ userId, chatId }: { userId: string; chatId: string }): Promise<void>;
  unpinChat({ userId, chatId }: { userId: string; chatId: string }): Promise<void>;

  messagesWereSeen({
    userId,