WP User Frontend Pro - Professional 4.0.6

* [Fix] multiple files not uploading when editing a post.

* [Feature] added conditional logic on the submit button.
* [Fix] label value was not being displayed in user listing when the field type was a checkbox.

* [Fix] While editing the checkbox values from the backend user profile page, the values were not being saved.
* [Fix] conditional logic based on radio & dropdown filed in the column field was not working.
* [Fix] Conditional logic was not working with the category field when the field type is checkbox.
* [Fix] Convert kit lists were not showing.
* [Fix] There was an error from social login API library(Hybridauth).