GravityView - DataTables Extension 3.5.2

#### Added
* Support for the Gravity Forms Chained Selects add-on.


#### Improved
* Sorting arrows are hidden from column headers when fields are not sortable.


#### Fixed
* Sorting for text and date fields when the "Data Processing Mode" option is set to "preloaded".
* Drop Down field filter escaped special characters, such as "&", in the displayed options.
* Creating a new View from inside the Gravity Forms form editor prevented the selection of the View type.
* Filtering by a Checkbox field with multiple values selected did not return the expected results.
* The View was hidden despite there being entries when the "No Entries Behavior" was set to "Hide the View".
* Exporting or copying table data with field filters that use a drop-down list included all available options in the header label for that field.

#### Added
- Support for a future GravityView ability to define a different layout for Single Entry screens.

#### Fixed
- Date range filtering not working with Gravity Forms Date fields.
- Row Group field dropdown not reflecting the current setting when the selected field uses a custom label.

#### Fixed
- Scroller extension can now be used with the FixedColumns and FixedHeader extensions.
- Resolved an issue preventing GravityView's Gutenberg blocks for Views from previewing when using the DataTables layout.

__Developer Updates:__

* Added: `gk/gravityview/datatables/output/before` action hook that runs before generating the output data.