Merge pull request #8694 from backstage/rugvip/use

use precise imports of react-use hooks

plugins/shortcuts/src/Shortcuts.tsx

@@ -15,7 +15,7 @@
  */
 
 import React, { useMemo } from 'react';
-import { useObservable } from 'react-use';
+import useObservable from 'react-use/lib/useObservable';
 import PlayListAddIcon from '@material-ui/icons/PlaylistAdd';
 import { ShortcutItem } from './ShortcutItem';
 import { AddShortcut } from './AddShortcut';