change wallpaper change script to systemd service

modules/home-manager/wm/hyprland.nix

@@ -54,6 +54,19 @@ in
         };
       })
     ];
+    
+    systemd.user.services.hypr-wallpaper = {
+      Unit = {
+        Description = "Wallpaper auto-changer";
+      };
+    
+      Service = {
+        ExecStart = "${pkgs.bash}/bin/bash /home/smayzy/.config/hypr/wallpaper.sh";
+        Restart = "always";
+        RestartSec = 10;
+      };
+    };
+
   };
 }