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-toggle-notification-silencing

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+makoctl mode -t do-not-disturb
+
+if makoctl mode | grep -q 'do-not-disturb'; then
+  notify-send -u low "󰂛    Silenced notifications"
+else
+  notify-send -u low "󰂚    Enabled notifications"
+fi
+
+pkill -RTMIN+10 waybar