Initial implementation of Spotifiy API connection, including a test suite

[cloud-matt]

This includes a JS based connection between our application and the Spotify API, allowing for easy development upon this structure.

Closes #9

After your review, we should meet to see the next steps for this project.

[kyrod]

looks good, we can rework the tests in a future issue

[cloud-matt]

Note: I made a small change to our CI workflow config file to include our Github Secrets as environment vars. Turns out it works! I wasn't sure if it was going to based on [https://github.com/actions/starter-workflows/issues/68](this issue thread).

Anyway, you may want to check that too to make sure it looks good. My apologies for editing it directly in master, that won't happen again.

[cloud-matt]

For future reference:

• Original Review was given approval as we were going to re-factor testing in the future. However, we came to the conclusion that we should get the testing situated now before we keep moving forward. Build a strong foundation.

I have since requested another review from @kyrod, who has much more experience with testing, as well as CI configuration (which I made a note about some changes above).

Kyle, if you see any changes that should be made, I say we get those in before we push through this PR. That way we're pretty concrete with our testing structure before reaaaally diving in. Thanks 💯

[kyrod]

looks good to me bruther

[cloud-matt]

Closes #10