This dynamically resizes the box to fit the variable text size present
with different languages.
At the same time, it adds padding to the English version to make it
look similar to previous versions.
Fixes#8275.
The CSS linter was pretty hard to reason about. It was
pretty flexible about certain things, but then it would
prevent seemingly innocuous code from getting checked in.
This commit overhauls the pretty-printer to be more composable,
where every object in the AST knows how to render itself. It
also cleans up a little bit of the pre_fluff/post_fluff logic
in the parser itself, so comments are more likely to be "attached"
to the AST node that make sense.
The linter is actually a bit more finicky about newlines, but
this is mostly a good thing, as most of the variations before
this commit were pretty arbitrary.
Previously, the font-weight for 500 did not exist in our set, so
all of those examples defaulted to 400. This fixes them to stay
as they previously were by migrating them to a font weight of 400.
This keeps hotspot icons positioned at the front of the message
viewport but behind sidebars (i.e. the left sidebar has a z-index
of 103). Hotspots associated with elements outside of the message
viewport should be individually adjusted at the bottom of hotspots.css.