* Fix: Fixed renaming filters on table builder that were not working.
* Fix: Fixed MIME type not being set on table builder.
* Fix: Fixed Safari tabindex bug that scrolled the page after clicking outside an option.
* Fix: Fixed bug on table builder when selecting no post type.
* Tweak: Added emptyFilter to language default translations.
* Tweak: Added filter slug to the table builder custom filter options.
* Tweak: Removed unnecessary messages from wizard page.
* Dev: Check submenu existence to remove some php error messages.