* Initial implementation to support iframe API(Hooks).

* new property added to local store: iframe.

* Add department default value on Register Form.

* Handling departments on Register Form.

* Removed unused library.

* Removed invalid comments.

* Check if the variables are assigned.

* Improve setTheme iFrame API method.

* Move client initialization

* Optimize some icons

* Add ChatButton in Screen

* Add small fixes to components

* Add base code for widget initialization

* Fix setCustomField approach.

* Handle window state

* Fix chat room state management

* Update SDK package version.

* Fix widget resizing

* Add small fixes to widget script

* Fix Screen overlays

* Fix chat-related SDK callbacks

* Fix agent assignment approach.

* Add a temporary fix related to handleRoute stuff.

* Improve system messages markdown.

* Fix the logic regarding Register Form.

* Fix the RegisterGuest API method(Hooks).