message: Import dnd src folder directly from demo
diff: import { LinkOutlined, QuestionCircleOutlined } from '@ant-design/icons';
  import { ChakraProvider, extendTheme } from '@chakra-ui/react';
  import { createTheme, ThemeProvider } from '@mui/material/styles';
  -import { QueryBuilder as QueryBuilderDnD } from '@react-querybuilder/dnd';
  +import { QueryBuilder as QueryBuilderDnD } from '@react-querybuilder/dnd/src';
  import {
  Button,
  Checkbox,
  