Even Better Clients Section

[anthonylavado]

We should rearrange the client section yet again.

It's been suggested that we move mobile clients higher up on the page, as that is what users are most likely looking for when they come to the site.

In addition, I don't think we have to worry so much about the distinction between Official and Unofficial - if we're listing the client, that means we think it's good enough to recommend. Most official clients will be named "Jellyfin for < platform >", "Jellyfin <platform/form factor>", or "Jellyfin". All the unofficial clients have other names.