private void btnFilter_Click(object sender, RoutedEventArgs e)
        {
            string filter = cbxFilters.SelectedValue.ToString();

            if (filter == "show all")
            {
                IssueViewModel.PopulateAsync(SettingsViewModel.MaxItemsCount).GetAwaiter();
            }
            else
            {
                IssueViewModel.PopulateByStatusAsync(filter, SettingsViewModel.MaxItemsCount).GetAwaiter();
            }
        }
        public ShowIssues()
        {
            this.InitializeComponent();

            IssueViewModel.PopulateAsync(SettingsViewModel.MaxItemsCount).GetAwaiter();
            lvIssues.ItemsSource = IssueViewModel.Issues;


            cbxFilters.ItemsSource = Filters;
            foreach (string status in SettingsViewModel.Statuses)
            {
                Filters.Add(status);
            }
            cbxFilters.SelectedIndex = 0;

            cbxStatuses.ItemsSource = SettingsViewModel.Statuses;
        }