feat: Styled StatusPage

[DafyddLlyr]

Cherry-picked from #1707 🍒

[github-actions]

Removed vultr server and associated DNS entries

[github-actions]

Lighthouse

	buckinhamshire/FOIYNPP	testing/canary
performance	0.26 - 0.24 = 0.02	0.34 - 0.3 = 0.04
accessibility	1 - 1 = 0.00	1 - 1 = 0.00
best-practices	1 - 1 = 0.00	0.83 - 0.92 = -0.09
seo	0.88 - 0.89 = -0.01	0.89 - 0.92 = -0.03
pwa	0.7 - 0.7 = 0.00	0.7 - 0.7 = 0.00

[jessicamcinchak]

question: as we're moving away from useStyles() should we also be aiming to move away from useTheme() in favor of sx with the theme callback value?

[DafyddLlyr]

This is a good question!

useTheme() is not deprecated in MUI v5 like useStyles() is, so we can safely continue using it. There are some cases where we likely can't avoid it just now - for example in this component we're using theme to pass a value into another component as a custom prop (so sx with a callback wouldn't work).

If there are places we're using useTheme() just to pass a value where we we could use sx, I'd probably favour sx as being a bit neater and and terser, but I think it's really just a personal preference.