Init extra fonts within doom-init-fonts-h. This was moved because I used
to believe that set-fontset-font (according to its documentation) could
only change the frame-local fontset. It turns out that the exception
when you pass t for its first argument, which targets the default (i.e.
global) fontset.
This is second of three big naming convention changes. In this commit,
we change the naming conventions for hook functions and variable
functions:
1. Replace the bar | to indicate a hook function with a -h suffix, e.g.
doom|init-ui -> doom-init-ui-h
doom|run-local-var-hooks -> doom-run-local-var-hooks-h
2. And add a -fn suffix for functions meant to be set on variables,
e.g.
(setq magit-display-buffer-function #'+magit-display-buffer-fn)
See ccf327f8 for the reasoning behind these changes.
