Create a better PR comment layout

[adamhenson]

Lighthouse scores as PR comments could use some love in the layout. The layout uses a lot of real estate. Can we make this better? This was raised in foo-software/lighthouse-check-action/issues/34

[cobaltt7]

Here is my setup to make better comments:
https://github.com/onedotprojects/auth/blob/develop/.github/workflows/lighthouse.yml
https://github.com/onedotprojects/auth/blob/develop/.github/workflows/lighthouse.js