Automated "First Boot" testing

[JarvyJ]

It would be cool to have an automated test that would start the container, try to update some settings, maybe click on the logs page and execute a command to ensure the first install goes okay and works as expected.

Rough idea as to what we could test:

• Home Intent actually comes up and isn't stuck in a bootloop
• The UI loads and can be interacted with
  • loads correctly with no config.yaml file
  • can enable the timer and save
  • a config.yaml gets generated
  • it restarts HomeIntent
  • the logs page loads
• an intent is executed and handled fired off correctly.

For now I'm doing this in a fresh container manually before cutting a release. I'm not entirely sure how to automate some of this and am open to ideas!