Belgian employee salary setup now includes a private license plate field where relevant. This helps payroll and HR teams capture vehicle-related employee information directly during salary configuration, reducing follow-up data collection.

Add private_license_plate to the salary configurator.

task-2936873

The salary configurator now captures an employee's private vehicle license plate as part of personal information. This improves Belgian payroll and salary contract setup by ensuring vehicle-related details are available where needed.

…ry configurator

Add private_license_plate to the salary configurator.

task-2936873

This update makes it cleaner for developers to adjust the context used by the timesheet grid. It does not change day-to-day user behavior, but it improves maintainability and makes future customizations safer and faster.

Before this commit modifying the context is not very clean. By making it a subfunction we can do a short & clean `super()` call to modify the context :)