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.

config/nomarchy/default/alacritty/screensaver.toml

@@ -0,0 +1,11 @@
+[colors.primary]
+background = "0x000000"
+
+[colors.cursor]
+cursor = "0x000000"
+
+[font]
+size = 18.0
+
+[window]
+opacity = 1.0