message: fix: icon type and breakpoint size
diff: import React from 'react'
  -import { Card, SvgIcon, Theme, Typography, CardContent, CardHeader } from '@mui/material'
  +import { Card, SvgIconProps, Theme, Typography, CardContent, CardHeader } from '@mui/material'
  import createStyles from '@mui/styles/createStyles'
  import makeStyles from '@mui/styles/makeStyles'
  import {
  @@ -45,7 +45,7 @@ const useStyles = makeStyles((theme: Theme) =>
  },
  },
  timelineItem: {
  - [theme.breakpoints.down(undefined)]: {
  + [theme.breakpoints.down('md')]: {
  display: 'block',
  },
  },
  @@ -55,7 +55,7 @@ type TimelineItemProps = React.PropsWithChildren<
  TimelineItemPropsMaterial & {
  title?: string
  lastItem?: boolean
  - Icon: typeof SvgIcon
  + Icon: React.ComponentType<SvgIconProps>
  }
  >
  