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/system/nomarchy-setup-dns

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+# Configure DNS declaratively for Nnomarchy NixOS.
+# Hybrid: updates /etc/nixos/state.json and runs sys-update.
+
+STATE_FILE="/etc/nixos/state.json"
+
+if [[ -z $1 ]]; then
+  dns=$(gum choose --height 6 --header "Select DNS provider" Cloudflare Google DHCP Custom)
+else
+  dns=$1
+fi
+
+case "$dns" in
+Cloudflare|Google|DHCP)
+  sudo jq ".dns = \"$dns\"" "$STATE_FILE" > /tmp/state.json && sudo mv /tmp/state.json "$STATE_FILE"
+  ;;
+
+Custom)
+  echo "Enter your DNS servers (space-separated, e.g. '192.168.1.1 1.1.1.1'):"
+  read -r dns_servers
+
+  if [[ -z $dns_servers ]]; then
+    echo "Error: No DNS servers provided."
+    exit 1
+  fi
+  
+  # Convert to JSON array
+  dns_array=$(echo "$dns_servers" | jq -R 'split(" ")')
+  sudo jq ".dns = \"Custom\" | .customDns = $dns_array" "$STATE_FILE" > /tmp/state.json && sudo mv /tmp/state.json "$STATE_FILE"
+  ;;
+esac
+
+echo "DNS configured to $dns. Applying changes..."
+sudo sys-update