Added default value to the note icon (https://github.com/woocommerce/woocommerce-admin/pull/4745)

This commit adds a default value to the note icon

Co-authored-by: Fernando Marichal <contacto@fernandomarichal.com>

plugins/woocommerce-admin/src/Install.php

@@ -260,6 +260,7 @@ class Install {
 			layout varchar(20) DEFAULT '' NOT NULL,
 			image varchar(200) NULL DEFAULT NULL,
 			is_deleted boolean DEFAULT 0 NOT NULL,
+			icon varchar(200) NOT NULL default 'info',
 			PRIMARY KEY (note_id)
 		) $collate;
 		CREATE TABLE {$wpdb->prefix}wc_admin_note_actions (