feat(system): comprehensive branding, styling, and system feature update

- Relocate themes to assets/themes/ and update all references.
- Implement custom SDDM theme and Plymouth theme enhancements.
- Add themed templates for Alacritty, Hyprland, Waybar, and other apps.
- Introduce Makima key remapper module and configuration.
- Add Voxtype and Walker configurations.
- Implement systemd power management and timeout optimizations.
- Add Nautilus-python extensions for LocalSend.
- Update branding assets and ASCII art integration.

bin/utils/nomarchy-hook

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Run a named hook, like post-update (available in ~/.config/nnomarchy/hooks/post-update).
+
+set -e
+
+if (( $# < 1 )); then
+  echo "Usage: nnomarchy-hook [name] [args...]"
+  exit 1
+fi
+
+HOOK=$1
+HOOK_PATH="$HOME/.config/nnomarchy/hooks/$1"
+shift
+
+if [[ -f $HOOK_PATH ]]; then
+  bash "$HOOK_PATH" "$@"
+fi