Add simple integration test for running upon pull rquest

[NicholasBottone]

Will make life easier for approving dependency upgrade pull requests.

Ideally this test will try hitting the homepage and perhaps one or two of the pages that queries from the database (just to ensure nothing catastrophic has happened).

[NicholasBottone]

Look into Percy and/or Playwright

https://www.browserstack.com/docs/percy/take-percy-snapshots/snapshots-via-cli