message: Add divider in tooltip
diff: import React, { useState } from 'react';
  import dayjs from 'dayjs';
  import utc from 'dayjs/plugin/utc';
  -import { useTheme, Box, Typography } from '@material-ui/core';
  +import {
  + useTheme,
  + Box,
  + Typography,
  + Divider,
  + emphasize,
  +} from '@material-ui/core';
  import { default as FullScreenIcon } from '@material-ui/icons/Fullscreen';
  import {
  AreaChart,
  @@ -182,10 +188,18 @@ export const CostOverviewByProductChart = ({
  fill: p.fill!,
  }));
  const expandText = (
  + <Box>
  + <Divider
  + style={{
  + backgroundColor: emphasize(theme.palette.divider, 1),
  + margin: '10px 0',
  + }}
  + />
  <Box display="flex" justifyContent="space-between" alignItems="center">
  <FullScreenIcon />
  <Typography>Click to expand</Typography>
  </Box>
  + </Box>
  );
  return (
  <Tooltip title={dateTitle}>
  