Fix missing mapZoom state variable in add property page

app/owner/properties/add/page.js

@@ -124,6 +124,7 @@ export default function AddPropertyPage() {
   
   const [selectedLocation, setSelectedLocation] = useState(null);
   const [mapCenter, setMapCenter] = useState([33.5138, 36.2765]); 
+  const [mapZoom, setMapZoom] = useState(13);
   const [searchQuery, setSearchQuery] = useState('');
   const [mapLoaded, setMapLoaded] = useState(false);