Effort: 4-5 hrs
Dependencies: #4

Acceptance criteria:

• Find file(s) needed to be modified
• Allow only professors/TAs to endorse posts
• Save which posts are endorsed

Milestone: Sprint 1

Evelynn's update: I was unable to successfully implement this due to facing multiple challenges with the code complexity and multiple dependencies within the codebase. I was able to pass the 'endorsing a post' test case.

Vicky's update: I wasn't able to successfully implement this feature either due to a lack of understanding of the entire overview of the code and didn't know where to continue implementing based off my partner (Evelynn's progress). I tried to make updates to this feature's BE by creating 2 branches but neither of them worked and game me errors when I tried the server. Because much of the code I'd written were routing related, I wasn't too sure how to test it without implementing the UI first (since we're trying to test whether an network related action actually happens).