fix(system): finalize VM stabilization and fix Hyprland syntax

- Restore custom SDDM theme.
- Clean up all remaining Hyprland windowrulev2 and layerrule syntax errors.
- Optimize VM configurations with 4GB RAM and virtio-vga graphics for stability.
- Remove diagnostic debug services and autologin debug settings.
- Ensure correct session autologin to hyprland-uwsm.

modules/home/hyprland.nix

@@ -28,7 +28,6 @@ in
         "swww-daemon & sleep 0.5 && swww img ${activeWallpaper} --transition-type none"
         "nomarchy-on-boot"
         "nomarchy-welcome"
-        "alacritty"
       ] ++ (lib.optional config.nomarchy.toggles.waybar "waybar");
       "bind" = [
         "SUPER, Space, exec, walker"

modules/system/sddm.nix

@@ -16,7 +16,7 @@ in
   services.displayManager.sddm = {
     enable = true;
     wayland.enable = true;
-    # theme = "nomarchy";
+    theme = "nomarchy";
   };
 
   services.displayManager.defaultSession = lib.mkDefault "hyprland-uwsm";