public static async Task <UserVM> GetUserVMAsync(string username, bool loggedIn)
{
List <Quiz> quizzes = new List <Quiz>();
quizzes = JsonConvert.DeserializeObject <List <Quiz> >(await MongoManager.GetAllQuizzesAsync(username));
var userVM = new UserVM(username, quizzes, loggedIn);
return(userVM);
}