Startup side-effects that modify the filesystem belong in first-run, not
in a recurring conf.d fragment. The symlink is now created once (like a
real install step) instead of being checked on every shell launch.
MANPATH addition stays in tricks.fish — that's an env var that must be
set each session.
Only jorgebucaran/fisher itself is in fish_plugins. The functionality
from catppuccin/fish, fzf.fish, done, autopair, and puffer-fish is
bundled directly with this config in modified form and must not be
installed or updated via fisher.
Removes sponge (not present), corrects file path mappings for bundled
components, fixes stale "Plugin sync failed" message in first_run.fish,
and expands fish-config.index with missing sections 9–11.