Gravity Forms Chained Selects Add-On 1.8.2

- Updated CSV content-type check for the gform_chainedselects_import_file filter to support cases where the charset is part of the content-type header.
- Updated `GF_Field_Dropbox::get_value_entry_detail()` for compatibility with the change to `GF_Field::get_value_entry_detail()` in Gravity Forms 2.9.29.
- Fixed an issue that causes a deprecation notice when Chained Selects field has Hide Inactive Drop Downs setting enabled.
- Fixed error which prevented file import for PHP 8.4+

- Updated `GF_Field_Dropbox::get_value_entry_detail()` for compatibility with the change to `GF_Field::get_value_entry_detail()` in Gravity Forms 2.9.29.
- Fixed error which prevented file import for PHP 8.4+

- Updated the editor icon.
- Updated the CSS to work with Orbital theme and Gravity Forms 2.7.
- Updated the form submit spinner to use Theme Framework styles.
- Fixed an issue with the ajax spinner with Gravity Forms 2.5 and greater.
- Fixed an issue where the first item in a chained select dropdown doesn't work for conditional logic unless it is first saved to another option.

### 1.5.2
- Updated the CSS to work with Orbital theme and Gravity Forms 2.7.
- Fixed an issue with the ajax spinner with Gravity Forms 2.5 and greater.