Using good ol'-fashioned cookies! The JS sets it, and then Rails reads
it on pageload. That way, there's no flash of content for it to load in
after JS loads.
Just cleaning up a bit! I'm sure there's more to remove, these were just some clear candidates: old wardrobe code, and stuff in `public` that I just fully don't recognize and don't think is doing anything? (We'll find out if something crashes though lol!)
