feat(DateTimePicker): add return statement to render DateTimePicker component

src/components/DateTimePicker.jsx

@@ -61,6 +61,8 @@ export default function DateTimePicker({
       window.scrollTo({ top: winY, behavior: 'instant' });
     });
   }, []);
+
+  return (
     <div className="dtp-wrapper" ref={wrapperRef}>
       {label && (
         <label className="block text-sm font-medium text-th-text mb-1.5">