feat(SW-718) refactor: optimize rate selection and room scrolling

components/HotelReservation/SelectRate/RateSummary/index.tsx

@@ -27,16 +27,14 @@ export default function RateSummary({
   const intl = useIntl()
   const [isVisible, setIsVisible] = useState(false)
 
-  const { rateSummary } = useRateSelectionStore()
+  const { getSelectedRateSummary } = useRateSelectionStore()
 
   useEffect(() => {
     const timer = setTimeout(() => setIsVisible(true), 0)
     return () => clearTimeout(timer)
   }, [])
 
-  const selectedRateSummary = rateSummary.filter(
-    (summary): summary is Rate => summary !== null
-  )
+  const selectedRateSummary = getSelectedRateSummary()
 
   if (selectedRateSummary.length === 0) return null