Deprecation: #82805 - Renamed AjaxLoginHandler PHP class 

See forge#82805

Description 

The PHP class \TYPO3\CMS\Backend\AjaxLoginHandler is renamed to the proper class name \TYPO3\CMS\Backend\Controller\AjaxLoginController as its a controller class with actions.

Impact 

Using the old PHP class is possible but any usages should be moved to the new class name.

Affected Installations 

Any TYPO3 instances using the PHP class directly in an extension.

Migration 

A extension scanner already checks for the old class name. A simple renaming of the class name to the new class \TYPO3\CMS\Backend\Controller\AjaxLoginController is sufficient.