This introduces .rb-c-trophies, a formal component for showing

trophies. This replaces the old .box.trophies, and is quite different.

It's the first big visual update for trophies since 1.0.
The new styling doesn't enclose trophies in a box, and isn't

left-aligned. Instead, these are now shown outside of a box, centered on

the page, with a trophy on either side of the text. The trophies are

slightly slanted away from the text.
The text is now a golden-ish color (which is a bit brighter on dark

mode, and a darker gold on light mode).
Removing the banner and adding the slanted trophies gives this a little

bit more personality. In the future, new trophy images could really help

make this stand out.

Tested on light and dark modes on mobile and desktop, with both sparkly

and fish trophies.