Bug: creating a new assignment doesn't work.

[Tuck-Williamson]

Description

When trying to create a new assignment, the CLI would just error out.

Ex:
Running

agh assignment new Assignment\ 5 CSCI-340 Fall 

The following error message was displayed.

────────────────────────────────────────────────────────────────────── agh - Assignment Grading Helper - Version: 0.3.0 ──────────────────────────────────────────────────────────────────────
No assignment found.