Fix import order with ESLint

Port d27216dc46 to glitch-soc

app/javascript/flavours/glitch/components/load_pending.jsx

@@ -1,6 +1,7 @@
-import { PureComponent } from 'react';
-import { FormattedMessage } from 'react-intl';
 import PropTypes from 'prop-types';
+import { PureComponent } from 'react';
+
+import { FormattedMessage } from 'react-intl';
 
 export default class LoadPending extends PureComponent {