fix: remove extra space when author is empty

[henryiii]

This removes the extra space when author is empty. (like on https://learn.scientific-python.org, where it says © 2026 . All rights reserved..

The with only executes if it's non-empty, and . is the object in the with.

[netlify]

✅ Deploy Preview for scientific-python-hugo-theme ready!

Built without sensitive environment variables

Name	Link
🔨 Latest commit	06416c2
🔍 Latest deploy log	https://app.netlify.com/projects/scientific-python-hugo-theme/deploys/69d09440adb79a0008000c1a
😎 Deploy Preview	https://deploy-preview-707--scientific-python-hugo-theme.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
Lighthouse	1 paths audited Performance: 92 Accessibility: 97 Best Practices: 100 SEO: 91 PWA: - View the detailed breakdown and full score reports

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[henryiii]

Nice to see netlify! :)

[agriyakhetarpal]

This always bothered me, but I never cared enough to fix it. Thank you! While we're at it, I think we should add authors to the config for all websites, though. Would you like to start doing so, @henryiii? :)

Also, should we be stricter and not allow websites with an empty author?

[henryiii]

Does it make sense to add an author to the main website? Individual pages makes sense, but just a general website with a few links doesn't seem to.

[agriyakhetarpal]

I think the author in the config is per-website, yes. The problem is that the main website is fragmented and built by collating multiple repo sources, so changes have to be reflected to multiple repos (I'm looking at the SPECs :D).