Feature: Add tabs to build dependencies for Linux

[pranavchoudhary-tech]

Resolves #1790

Hi @brettcannon!

As requested in the issue, I've reorganized the Linux build dependencies section to use separate dnf and apt tabs. This groups the dependencies neatly so users only see the commands relevant to their specific Linux distribution, matching the style of the macOS tabs below it.

Let me know if you need any adjustments!

[python-cla-bot]

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[read-the-docs-community]

Documentation build overview

📚 CPython devguide | 🛠️ Build #33195000 | 📁 Comparing fa9759a against latest (e0ecbef)

  🔍 Preview build  

2 files changed

± versions/index.html
± getting-started/setup-building/index.html

[encukou]

I'm a bit late here, but: do Ubuntu users know they need the apt tab? It doesn't look obvious to me.

[brettcannon]

I'm a bit late here, but: do Ubuntu users know they need the apt tab? It doesn't look obvious to me.

It says it under the tab, but trying to list every Debian or RH derivative never ends. Plus if you don't recognize apt there's going to be a bit more of a learning curve around a terminal before you try to compile Python from scratch.

It's also a 50/50 click if you have to look at both to figure it out.

[encukou]

trying to list every Debian or RH derivative never ends

Yeah, but Ubuntu is the well-known one and Debian is the "root"; I don't think we need more.
Same with Fedora/RHEL/CentOS -- I'd currently assume that users of any of the the derivatives would know this is their section them. (And CentOS is probably superfluous here.)

Anyway, merged in #1841 before I read this. Sorry for that!
Let's revisit when more tabs are added & we start running out of space?