Autoload paths used to be relative to arbitrary roots (usually
doom-modules-dir). This commit changes doom//reload-autoloads to iterate
over autoloads in doom-autoloads-file and replace their file paths with
an absolute one.
Theoretically this should make Emacs feel marginally faster, but we
*probably* get more of a benefit from a shorter load-path (because we no
longer need doom-modules-dirs, doom-core-dir or doom-psuedo-module-paths
in the load-path).
This is highly experimental however!
a967aa051a