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/appearance/nomarchy-theme-refresh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# Refresh the current theme from its templates.
+
+THEME_NAME_PATH="$HOME/.config/nnomarchy/current/theme.name"
+
+if [[ -f $THEME_NAME_PATH ]]; then
+  nnomarchy-theme-set "$(cat $THEME_NAME_PATH)"
+fi