Specifically the one used on the daily challenge screen. Was bugging me
that playlists/multi have that old yellow header design used, so I've
changed it. Will probably come in handy once the footer/leaderboard
changes are in.
Also localized the headers while at it.
Multiplayer:

Playlists:

The only thing I'm wondering about is whether the detail thing
(participant count/playlist length) should be using the highlight colour
here. The old design had them be yellow, but I feel like the pink on
this one stands out too much.
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Co-authored-by: Dean Herbert <pe@ppy.sh>
This sort of thing has been showing up on flyte designs more and more
so I want to start using it more over that rather ugly "overlined" text
that's there on multiplayer screens right now.