Fix eslint errors

Author: kean

src/components/editor-toolbar/index.jsx

@@ -84,7 +84,7 @@ const EditorToolbar = ( { className } ) => {
 		<Button
 			title={ __( 'Add block' ) }
 			icon={ plus }
-			onTouchEnd={ ( e ) => { 
+			onTouchEnd={ ( e ) => {
 				e.preventDefault();
 				showBlockInserter();
 			} }