[x] Setup CI GitHub Actions (free for GitHub's runners on Public repositories) to check compile correctly on PR to main; in the future, run unit tests (will we even do that?!)
[x] Setup Firebase Hosting website for Designer team access
[x] Ensure that test site will not cost money (set up a GCP billing alert)
[x] Ask Firebase project owner Joel Kek to downgrade BLAZE PLAN to SPARK PLAN (he's okay to keep it as is)
Outcome: