5 lighthouse action

[RossellaFer]

Resolves #5 Github action for Lighthouse

What changed 🧐

• setup the action Lighthouse CI
  The action will test the homepage 3 times and generate a report with the scores, similar to this this one)
• changed the ESLint configuration to work with the lighthouserc.cjs file

How did you test it? 🧪

Manual testing by running the commands

npm install && npm install -g @lhci/[email protected]
npm run build
lhci autorun

[ann-kilzer]

This looks awesome. I don't know if there is an easy way to get the report in front of the developers, but perhaps that could be a follow up task. https://storage.googleapis.com/lighthouse-infrastructure.appspot.com/reports/1714039530164-69286.report.html

I made a few suggestions about tweaking the metrics, because I think aiming for 80-90% scores across the board will be a healthier target.

🤩 thank you

[ann-kilzer]

lgtm