message: Fix ugprade issues
diff: -import { Renderable, RenderFunction } from '@storybook/react'
  import React from 'react'
  import { lightTheme, ThemeProvider } from '../styles/'
  -export const withStorybookTheme = (story: RenderFunction): Renderable => {
  - return <ThemeProvider theme={lightTheme}>{story()}</ThemeProvider>
  -}
  +export const withStorybookTheme = storyFn => <ThemeProvider theme={lightTheme}>{storyFn()}</ThemeProvider>
  