Color let-functions no longer take format string arguments. e.g.
(format! (red "Hello %s" "world"))
Becomes
(format! (red "Hello %s") "world")
The same goes for print!. Also, doom-ansi-apply now takes two arguments
instead of three.
Also merges doom-message-{fg,bg,fx} into doom-ansi-alist, and reduces
backtrace noise when errors originate from inside these macros.