Gravity Forms Help Scout Addon 2.3.0

- Fixed uploaded files not being attached to conversations.

- Added *[gform_helpscout_conversation](docs.gravityforms.com filter to allow modifying the conversation before it is created in Help Scout.
- Added support for updating first name and last name and adding new phone numbers when user with matching email is found in Help Scout.
- Updated to use Help Scout's Mailbox API 2.0.
- Fixed issue where authenticating with Help Scout via Gravity API was not working.
- Fixed the conversation status changing from closed to active when adding a note.

- Fixed issue where authenticating with Help Scout via Gravity API was not working.