GravityView 2.22

* Fixed: View scripts and styles would not load when manually outputting the contents of the `[gravityview]` shortcode

__Developer Updates:__

* Added: `gravityview/shortcode/before-processing` action that runs before the GravityView shortcode is processed
* Added: `gravityview/edit_entry/cancel_onclick` filter to modify the "Back" link `onclick` HTML attribute
- Modified: `/includes/extensions/edit-entry/partials/form-buttons.php` file to add the filter

* Fixed: Edit Entry would not accept zero as a value for a Number field marked as required
* Modified: Refined the capabilities assigned to GravityView support when access is granted using TrustedLogin. Now our support will be able to debug theme-related issues and use the [Code Snippets](https://wordpress.org/plugins/code-snippets/) plugin.

* Fixed: Entry Approval not working when using DataTables in responsive mode (requires DataTables 2.4.9 or newer).
* Modified: Refined the capabilities assigned to GravityView support when access is granted using TrustedLogin. Now our support will be able to debug theme-related issues and use the [Code Snippets](https://wordpress.org/plugins/code-snippets/) plugin.

__Developer Updates:__

* Updated: Upgraded to [Fancybox 4](https://fancyapps.com/docs/ui/fancybox).
* Updated: [TrustedLogin Client](https://github.com/trustedlogin/client) to Version 1.0.2.
* Modified: Added Code Snippets CSS file to No Conflict allow list.
* Modified: Moved internal (but public) method `GravityView_Admin_ApproveEntries:rocess_bulk_action` to new `GravityView_Bulk_Actions` class.