Feature: #87726 - Extend FrontendLoginController Hook to validate password

See Issue #87726

Description

The Hook $GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['felogin']['password_changed'] is extended to validate the given password. In the Hook you can set a custom validation Message.

Impact

You can now use the hook via:

$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['felogin']['password_changed'][] = \Your\Namespace\Hooks\MyBeautifulHook::class . '->passwordChanged';

Example implementation: