Only show profile directory link when it's enabled (#11064)

app/javascript/mastodon/features/ui/components/navigation_panel.js

@@ -2,6 +2,7 @@ import React from 'react';
 import { NavLink, withRouter } from 'react-router-dom';
 import { FormattedMessage } from 'react-intl';
 import Icon from 'mastodon/components/icon';
+import { profile_directory } from 'mastodon/initial_state';
 import NotificationsCounterIcon from './notifications_counter_icon';
 import FollowRequestsNavLink from './follow_requests_nav_link';
 import ListPanel from './list_panel';
@@ -23,7 +24,7 @@ const NavigationPanel = () => (
 
     <a className='column-link column-link--transparent' href='/settings/preferences'><Icon className='column-link__icon' id='cog' fixedWidth /><FormattedMessage id='navigation_bar.preferences' defaultMessage='Preferences' /></a>
     <a className='column-link column-link--transparent' href='/relationships'><Icon className='column-link__icon' id='users' fixedWidth /><FormattedMessage id='navigation_bar.follows_and_followers' defaultMessage='Follows and followers' /></a>
-    <a className='column-link column-link--transparent' href='/explore'><Icon className='column-link__icon' id='address-book-o' fixedWidth /><FormattedMessage id='navigation_bar.profile_directory' defaultMessage='Profile directory' /></a>
+    {!!profile_directory && <a className='column-link column-link--transparent' href='/explore'><Icon className='column-link__icon' id='address-book-o' fixedWidth /><FormattedMessage id='navigation_bar.profile_directory' defaultMessage='Profile directory' /></a>}
   </div>
 );