Merge pull request #20037 from woocommerce/fix/steps

Add default empty step class to html-csv-import-steps.php

includes/admin/importers/views/html-csv-import-steps.php

@@ -12,6 +12,7 @@ if ( ! defined( 'ABSPATH' ) ) {
 <ol class="wc-progress-steps">
 	<?php foreach ( $this->steps as $step_key => $step ) : ?>
 		<?php
+		$step_class = '';
 		if ( $step_key === $this->step ) {
 			$step_class = 'active';
 		} elseif ( array_search( $this->step, array_keys( $this->steps ), true ) > array_search( $step_key, array_keys( $this->steps ), true ) ) {