walker owns /etc/xdg/walker/config.toml and overwrites it on every
update. Instead of fighting for that path, deploy our config override
to user homes (~/.config/walker/) via the .install hook where XDG
lookup finds it first. Also fix stale rofi dependency → walker + elephant.
moonarch-git packages all desktop environment defaults (XDG configs,
helper scripts, zsh config, wallpaper) for pacman-managed deployment.
Includes moonarch-update for simplified system maintenance.
sweet-cursors-git packages the Sweet cursor theme separately.
