fix(nixos): add RomM Homepage entry

configs/nixos/guests/romm.nix

@@ -94,6 +94,14 @@ in
           }
         ];
 
+    registry.homepage.${config.networking.hostName}.romm = {
+      tab = "Apps";
+      section = "Media";
+      name = "RomM";
+      description = "Games";
+      icon = "romm.png";
+    };
+
     guests.romm = {
       interior = {
         modules.services.romm.enable = true;