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.

modules/home/stylix.nix

@@ -2,12 +2,12 @@
 
 let
   # Re-use our state-based logic
-  palettes = import ../../themes/nomarchy-palettes.nix;
+  palettes = import ../../assets/themes/nomarchy-palettes.nix;
   
   activeThemeName = config.nomarchy.theme;
   activeWallpaper = if config.nomarchy.wallpaper != "" then 
     config.nomarchy.wallpaper 
-  else "${../../themes/catppuccin/backgrounds/1-totoro.png}"; # Fallback
+  else "${../../assets/themes/catppuccin/backgrounds/1-totoro.png}"; # Fallback
 
   # Map nix-colors palette to a format Stylix expects (attrset of hex strings)
   currentPalette = (palettes.${activeThemeName} or palettes.nord).palette;