Enqueue the script only on editor pages

Hi, great utility, thanks!

Right now, the plugin prints its script on all admin pages. You can enqueue it only withing Gutenberg context with this:

add_action( 'enqueue_block_editor_assets', function () {
    $script = "jQuery( window ).load( function() { 
        /* script */
    });";
    wp_add_inline_script( 'wp-blocks', $script );
});