+ Adds doom-emoji-fallback-font-families
+ Adds doom-symbol-fallback-font-families
+ Gives doom-unicode-font higher precedence (and sets it to nil by
default, since Emacs defaults to symbola already).
+ Store custom face settings in psuedo theme, rather than crowding the
user theme (which may be immortalized to custom-file, which we want to
avoid).
+ Now, after-setting-font-hook is guaranteed to fire after *all* fonts
are set, giving you a more reliable interface to add your own
font(set) modifications.
More testing is needed to ensure the patched fonts our ligatures modules
don't conflict with this change.
d4dec35658