Hardcoded database table prefix

[Rasti Tkac]

Hi there

ghostkit/src/classes/class-typography.php

Line 38 in 58ed4cf

 'SELECT * FROM `wp_postmeta` WHERE (`meta_key` LIKE %s) LIMIT 50', 

causes problems on installations not using the default table prefix wp_.

Solution is to use prefix property of the $wpdb object instead of hardcoding wp_postmeta like so: $wpdb->prefix . 'postmeta'.

Can you, please, patch this?