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/hardware/nomarchy-toggle-hybrid-gpu

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+
+# Toggle dedicated vs integrated GPU mode via supergfxd (for hybrid gpu laptops, like Asus G14).
+# Declarative enablement + Runtime mode switching for Nnomarchy NixOS.
+
+STATE_FILE="/etc/nixos/state.json"
+
+# Check if supergfxd is enabled in config
+if [[ $(sudo jq -r '.features.hybridGPU // false' "$STATE_FILE") != "true" ]]; then
+    if gum confirm "Hybrid GPU support is not enabled. Enable it now? (Requires sys-update)"; then
+        sudo jq ".features.hybridGPU = true" "$STATE_FILE" > /tmp/state.json && sudo mv /tmp/state.json "$STATE_FILE"
+        echo "Hybrid GPU support enabled in configuration. Applying changes..."
+        sudo sys-update
+        echo "Please run this command again after the update."
+        exit 0
+    fi
+    exit 1
+fi
+
+if ! command -v supergfxctl &> /dev/null; then
+    echo "supergfxctl not found. Is the system updated?"
+    exit 1
+fi
+
+gpu_mode=$(supergfxctl -g)
+echo "Current GPU mode: $gpu_mode"
+
+case "$gpu_mode" in
+"Integrated")
+  if gum confirm "Switch to Hybrid mode (enables dGPU) and reboot?"; then
+    supergfxctl -m Hybrid
+    echo "Switching to Hybrid mode..."
+    nnomarchy-system-reboot
+  fi
+  ;;
+"Hybrid")
+  if gum confirm "Switch to Integrated mode (disables dGPU) and reboot?"; then
+    supergfxctl -m Integrated
+    echo "Switching to Integrated mode..."
+    nnomarchy-system-reboot
+  fi
+  ;;
+*)
+  echo "Hybrid GPU in unknown mode: $gpu_mode. Try 'supergfxctl -m Hybrid' manually."
+  exit 1
+  ;;
+esac