public ActionResult <GeneralStatisticsViewModel> GetGeneralStatistics()
{
var generalStatisticsViewModel = new GeneralStatisticsViewModel()
{
NumberOfCompanies = _companyService.CountCompanies(),
NumberOfStudents = _studentService.CountStudents(),
NumberOfInternships = _internshipService.CountInternships()
};
return(Ok(generalStatisticsViewModel));
}