fix(menu): remove "Setup → Config" submenu

show_setup_config_menu was an Omarchy holdover where users edited
mutable config files at runtime. In Nomarchy:

  - hyprland.conf, hypridle.conf, hyprsunset.conf, walker/config.toml,
    waybar/config.jsonc are all Home-Manager-generated from declarative
    settings — a `home-manager switch` clobbers any edit.
  - hyprlock.conf and swayosd/config.toml point at paths the modules
    don't deploy at all; open_in_editor created empty files.
  - ~/.XCompose is a HM symlink into /nix/store — read-only.

Dropped the entire submenu function and the "  Config" item from
show_setup_menu (and the matching *Config*) case branch). Persistent
settings go through the relevant nomarchy.* option in
/etc/nixos/home.nix (or system.nix); when the nomarchy.overrides.*
loader ships, a successor menu can route through
~/.config/nomarchy/overrides/.

Side effect (caught by the SCRIPTS.md regen): nomarchy-restart-xcompose
is now `unused?` — its only caller was the XCompose case I just
removed. Left for a future Pillar 3 cleanup rather than widening
this PR.

`bash -n` clean.

docs/SCRIPTS.md

@@ -120,7 +120,7 @@ Phase B (per-batch PRs) refines those into `port-from-omarchy`,
 | `nomarchy-restart-walker` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-menu, +1 more | `kept` |  |
 | `nomarchy-restart-waybar` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-menu, +4 more | `kept` |  |
 | `nomarchy-restart-wifi` | `core/system/scripts` | features/scripts/utils/nomarchy-menu | `kept` |  |
-| `nomarchy-restart-xcompose` | `core/system/scripts` | features/scripts/utils/nomarchy-menu | `kept` |  |
+| `nomarchy-restart-xcompose` | `core/system/scripts` | — | `unused?` |  |
 | `nomarchy-setup-dns` | `core/system/scripts` | features/scripts/utils/nomarchy-menu | `kept` |  |
 | `nomarchy-setup-fido2` | `core/system/scripts` | features/scripts/utils/nomarchy-menu,installer/install.sh | `kept` |  |
 | `nomarchy-setup-fingerprint` | `core/system/scripts` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-menu | `kept` |  |
@@ -161,7 +161,7 @@ Phase B (per-batch PRs) refines those into `port-from-omarchy`,
 | `nomarchy-theme-update` | `themes/engine/scripts` | features/scripts/utils/nomarchy-menu | `kept` |  |
 | `nomarchy-toggle-hybrid-gpu` | `core/system/scripts` | features/scripts/utils/nomarchy-menu,features/scripts/utils/nomarchy-sys-update, +1 more | `kept` |  |
 | `nomarchy-toggle-idle` | `core/system/scripts` | core/home/config/nomarchy/default/hypr/bindings/utilities.conf,features/desktop/waybar/config/config.jsonc, +2 more | `kept` |  |
-| `nomarchy-toggle-nightlight` | `themes/engine/scripts` | core/home/config/nomarchy/default/hypr/bindings/utilities.conf,core/home/config/nomarchy-skill/SKILL.md, +1 more | `kept` |  |
+| `nomarchy-toggle-nightlight` | `themes/engine/scripts` | core/home/config/nomarchy/default/hypr/bindings/utilities.conf,core/home/config/nomarchy-skill/SKILL.md, +2 more | `kept` |  |
 | `nomarchy-toggle-notification-silencing` | `features/scripts/utils` | core/home/config/nomarchy/default/hypr/bindings/utilities.conf,features/desktop/waybar/config/config.jsonc, +1 more | `kept` |  |
 | `nomarchy-toggle-screensaver` | `features/scripts/utils` | features/scripts/utils/nomarchy-menu | `kept` |  |
 | `nomarchy-toggle-suspend` | `core/system/scripts` | features/scripts/utils/nomarchy-menu | `kept` |  |
@@ -181,7 +181,7 @@ Phase B (per-batch PRs) refines those into `port-from-omarchy`,
 | `nomarchy-voxtype-model` | `features/scripts/utils` | features/desktop/waybar/config/config.jsonc,features/desktop/waybar/themes/summer-night/config.jsonc | `kept` |  |
 | `nomarchy-voxtype-remove` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md | `kept` |  |
 | `nomarchy-voxtype-status` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md,features/desktop/waybar/config/config.jsonc, +1 more | `kept` |  |
-| `nomarchy-wallpaper` | `features/scripts/utils` | bin/utils/nomarchy-docs-scripts,core/home/config/nomarchy/default/hypr/autostart.conf, +2 more | `kept` |  |
+| `nomarchy-wallpaper` | `features/scripts/utils` | bin/utils/nomarchy-docs-scripts,core/home/config/nomarchy/default/hypr/autostart.conf, +3 more | `kept` |  |
 | `nomarchy-webapp-install` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md,features/scripts/utils/nomarchy-webapp-remove-all | `kept` |  |
 | `nomarchy-webapp-remove` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md | `kept` |  |
 | `nomarchy-webapp-remove-all` | `features/scripts/utils` | core/home/config/nomarchy-skill/SKILL.md | `kept` |  |
@@ -242,18 +242,8 @@ Walked from `features/scripts/utils/nomarchy-menu`. Each `case` arm in a `show_*
 | `show_setup_menu` | Input | `_(inline)_` | `kept` |
 | `show_setup_menu` | DNS | `nomarchy-setup-dns` | `kept` |
 | `show_setup_menu` | Security | `_(inline)_` | `kept` |
-| `show_setup_menu` | Config | `_(inline)_` | `kept` |
 | `show_setup_security_menu` | Fingerprint | `nomarchy-setup-fingerprint` | `kept` |
 | `show_setup_security_menu` | Fido2 | `nomarchy-setup-fido2` | `kept` |
-| `show_setup_config_menu` | Defaults | `_(inline)_` | `kept` |
-| `show_setup_config_menu` | Hyprland | `_(inline)_` | `kept` |
-| `show_setup_config_menu` | Hypridle | `nomarchy-restart-hypridle` | `kept` |
-| `show_setup_config_menu` | Hyprlock | `_(inline)_` | `kept` |
-| `show_setup_config_menu` | Hyprsunset | `nomarchy-restart-hyprsunset` | `kept` |
-| `show_setup_config_menu` | Swayosd | `nomarchy-restart-swayosd` | `kept` |
-| `show_setup_config_menu` | Walker | `nomarchy-restart-walker` | `kept` |
-| `show_setup_config_menu` | Waybar | `nomarchy-restart-waybar` | `kept` |
-| `show_setup_config_menu` | XCompose | `nomarchy-restart-xcompose` | `kept` |
 | `show_update_menu` | Nomarchy | `nomarchy-update` | `kept` |
 | `show_update_menu` | Themes | `nomarchy-theme-update` | `kept` |
 | `show_update_menu` | Process | `_(inline)_` | `kept` |