[Glitch] Use the new JSX transform everywhere

Port 8f66126b10 to glitch-soc

app/javascript/flavours/glitch/features/local_settings/navigation/item/index.jsx

@@ -1,5 +1,5 @@
 //  Package imports
-import React from 'react';
+import { PureComponent } from 'react';
 import PropTypes from 'prop-types';
 import classNames from 'classnames';
 
@@ -7,7 +7,7 @@ import { Icon } from 'flavours/glitch/components/icon';
 
 //  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 
-export default class LocalSettingsPage extends React.PureComponent {
+export default class LocalSettingsPage extends PureComponent {
 
   static propTypes = {
     active: PropTypes.bool,