Zola port: redesign and cleanup

[jimmac]

Ported the site from Middleman to Zola. Middleman is hard to test locally and close to abandonware at this point. Zola has no dependencies and is lightning fast.

• Named grid layout with side by sides (similar to the www.gnome.org setup)
• Setup: removed all 39 distro pages; "Get Setup" now links to flathub.org/setup. It's more extensive and up to date.
• Content: updated blog posts (through 2026) and presentations (through LAS 2026), added
  recent Flatpak history milestones
• Press page: added graphics/logo download section
• Meta: Open Graph / Twitter share card -- sharing links to socials is now pretty
• CSS: subgrid layouts for about page, semantic color variables, dark mode, mobile responsive

TODO: Actions/CI build. Future looking Flatpak Next, Sustainability/funding.

[AsciiWolf]

Wow, thanks a lot for working on this, Jakub!

@barthalion If possible, please take a look. Thanks! :)

@razzeee Any chance you could do one more sync of the distro setup changes? There were some fixes since the last sync and Slackware has been added to the list. Thanks!

[jimmac]

Some screenshots to illustrate the site hasn't departed from the status quo much, other than a modern layout and a maintainable backend.

[AsciiWolf]

Looks great! Just a small nitpick: The "Get Setup" vs "Get set up" text triggers my OCD. :-))

[barthalion]

Let me know when you want to have this merged and I will fix any CI issues on the go.

[swick]

Resizing should reproduce this.

Also the base_url is apparently actually used so it doesn't work when running locally (images dont load for example).

Otherwise this looks good.

[jimmac]

Thanks for the review. Adjusted the alignment of the hero background.

Also the base_url is apparently actually used so it doesn't work when running locally (images dont load for example).

zola serve should deal with this when running locally.

[swick]

Mh, don't know what to say. I used the dockerfile and when opened in the browser, the images didn't load because it was trying to fetch them from flatpak.org.

@barthalion are you going to fix the CI?

[barthalion]

It will fix itself once it's merged. I can handle that today if no one minds.