v2.5.1

Changelog

• Fixed: Default Expiration Categories cannot be unset, #94;
• Fixed: Tidy up design for Classic Editor version, #83;
• Fixed: All posts now carry the default expiration, #115;
• Fixed: Error with 2.5.0 and WordPress 5.8.1, #110;
• Fixed: Do not show private post types that don't have an admin UI, #116;