minor cleanup; use gamescope default args instead of wrapper

configuration/base/networking.nix

@@ -13,6 +13,9 @@
       enable = true;
       wifi.powersave = false;
     };
+    firewall = {
+      enable = true;
+    };
   };
 
   # Configure network proxy if necessary
@@ -23,7 +26,6 @@
   # services.printing.enable = true;
 
   # Open ports in the firewall.
-  networking.firewall.enable = true;
   # 443 Helldivers crashes internet otherwise
   # networking.firewall.allowedTCPPorts = [ 443 ];
   # networking.firewall.allowedUDPPorts = [ 443 ];