automated test suite

[bruffridge]

As the code base grows, it's getting hard to manually test after every change. Should probably start to look into adding some automated tests.

Github Actions might be sufficient or we can look at other CI services.

https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs

[jackitaliano]

I believe Github Actions would be sufficient as well. Will have to check that out to see if it'll work with regression testing software (I don't see why not).

Likely will use Selenium. Was also suggested to check out Playwright, so I'll look into that too.