[Glitch] Remove legacy decorators syntax

Port d1b057a0ac to glitch-soc

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

@@ -12,7 +12,6 @@ const messages = defineMessages({
   moveRight: { id: 'column_header.moveRight_settings', defaultMessage: 'Move column to the right' },
 });
 
-export default @injectIntl
 class ColumnHeader extends React.PureComponent {
 
   static contextTypes = {
@@ -218,3 +217,5 @@ class ColumnHeader extends React.PureComponent {
   }
 
 }
+
+export default injectIntl(ColumnHeader);