message: Make SidebarPinStateContext import more clear
diff: import React, { useContext } from 'react';
  import { BackstageTheme } from '@backstage/theme';
  import { makeStyles, ThemeProvider } from '@material-ui/core/styles';
  -import { SidebarPinStateContext } from '..';
  +import { SidebarPinStateContext } from '../Sidebar/Page';
  export type PageClassKey = 'root';
  