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/system/state.nix

@@ -22,6 +22,7 @@ in
       fingerprint = systemState.features.fingerprint or false;
       fido2 = systemState.features.fido2 or false;
       hybridGPU = systemState.features.hybridGPU or false;
+      makima = systemState.features.makima or false;
     };
     theme = systemState.theme or "nord";
   };