Running whoami returns null after authenticating

[joshiefishbein]

Describe the bug
When I run the whoami command, the CLI thinks for a moment and returns Hello... null!. This function may be looking for info I haven't added yet and needs a better fallback.

To Reproduce
Steps to reproduce the behavior:

1. Install CLI
2. Run spirit-fish authenticate
3. Authenticate via Chrome browser
4. Run spirit-fish whoami

Expected behavior
I expected to see my github username or primary github email address.

Screenshots

Desktop (please complete the following information):

• Late-2016 MBP 15"
• OS: MacOS 10.15.7
• Version: 0.0.8