UX: Download page

[leoarnold]

Confusion: On the download page I tried to download Prism files with the Okaida theme, but the downloaded files would always provide the default theme.

Root cause: There are two independent theme selectors: one will set the theme displayed, the other the theme in the files to be downloaded.

Suggestion: Synchronize the two selectors or redesign to one selector in order to make the page more "WYSIWYG".

[LeaVerou]

Yeah, I've often thought the current theme should be the default on the download page.
That should be relatively easy to implement, and a good first PR!

Btw, we should add a "good first PR" label for issues. I would add it but I'm not sure if there's a standard wording, and searching didn't yield any good results. Anyone knows?

[Golmote]

@LeaVerou Here are suggestions for label names, taken from https://github.com/MunGell/awesome-for-beginners:

• first-timers-only (it's popular, but I'm not a big fan of it, since it prevents anyone more experienced from fixing the issue, which I think is stupid)
• good first issue, good-beginner-issue, good-for-beginner, easy-pick, first timers welcome, good-first-contribution, beginner-friendly
• beginner, Level:Starter, exp/beginner, difficulty/newcomer (which implies, I suppose, creating other labels for other levels of estimated difficulty)