Style Progress Bar and a few minor tweaks

[FredHappyface]

Thank you for an awesome project - was a great starting point for some dev I was doing

This PR adds the following:

• add dark scrollbar for dark theme
• consistent hovering (brightness is applied to navbar hovering)
• style progress bar

(Adapted from changes for some webdev I was doing - https://fhpwa.github.io/. There were some other changes made around theming but I've held off as I'm not sure if that diverges too much from the theming this project aims to do. On the off-chance it would be useful happy to contribute further)

Hope this is useful, any tweaks etc - please let me know

[netlify]

✅ Deploy Preview for simplecss-cdn ready!

Name	Link
🔨 Latest commit	261c7e0
🔍 Latest deploy log	https://app.netlify.com/sites/simplecss-cdn/deploys/627e99e076d80400087ce866
😎 Deploy Preview	https://deploy-preview-82--simplecss-cdn.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.

[kevquirk]

Hey, thanks for this - lots of tidy up that just becomes white noise as I spend so much time in this file. I think Atom automatically cleans up the tabbing, so I don't see that. So appreciate the tidying there.

I don't like the colour changes though - using accent-bg in place of accent for things like buttons isn't what I want, and it would be a breaking change for the sites that use simple.css.

If you remove the changes to the colours, I'll merge the rest.

Thanks,

Kev

[FredHappyface]

Hopefully addressed your comments. Would you like this reverting too? This was included to provide consistency with other hover items like buttons

[FredHappyface]

Hi just dropping a follow up comment here. Happy to make additional changes if needed :)

[kevquirk]

Thanks for the prompt - been meaning to re-visit this.