Add ESLint rule no-misused-promises and fix lint issues

[SheepTester]

There's no issue for this, but it was mentioned during the dev work session. This just adds an ESLint rule that checks for using Promises as a condition in an if statement (documentation). I've also fixed the unawaited booleans (which were from the same file).

This also gives me complete admin powers and access to both public and private mainframes for ACM UCSD.

[dowhep]

This seems to work but there is a chance the error comes from forking the repo instead of splitting to a separate branch. Nikhil will create a branch with the same changes to check whether that is the case.