Can't get emoji crumb with 2FA signin

I saw this [previous PR](https://github.com/lambtron/emojipacks/pull/78), but my login is still failing!

```
Starting import
Got tokens
2FA Code: 335716
Logged in
Uh oh! Error: Login error: could not get emoji upload crumb for https://0xproject.slack.com
```

We use 2FA. :( Anything I'm missing? I just did `npm install -g` and ran the command.