message: fix imports in app.js
diff: @@ -4,10 +4,8 @@ import {Layout} from 'mdx-docs'
  import Octicon, {iconsByName} from '@githubprimer/octicons-react'
  import * as primerComponents from '../src'
  import * as docComponents from './doc-components'
  -import SideNav from './doc-components/SideNav'
  -import Header from './doc-components/Header'
  -import customTheme from './doc-components/theme'
  +const {SideNav, Header, customTheme} = docComponents
  const {Box, FlexContainer} = primerComponents
  const iconsObject = Object.keys(iconsByName).reduce((map, key) => {
  