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/state.nix

@@ -119,9 +119,9 @@ in
       fonts.monospace = togglesState.font or "JetBrainsMono Nerd Font";
       
       # Derived properties from the theme directory
-      isLightMode = builtins.pathExists (../../themes + "/${togglesState.theme or "nord"}/light.mode");
+      isLightMode = builtins.pathExists (../../assets/themes + "/${togglesState.theme or "nord"}/light.mode");
       iconsTheme = let
-        iconsFile = ../../themes + "/${togglesState.theme or "nord"}/icons.theme";
+        iconsFile = ../../assets/themes + "/${togglesState.theme or "nord"}/icons.theme";
       in
         if builtins.pathExists iconsFile 
         then lib.removeSuffix "\n" (builtins.readFile iconsFile)