private async void LoadData_Clicked(object sender, EventArgs e)
{
BitChangeSetManagerContext context = new BitChangeSetManagerContext(new Uri($"{BaseAddress}/odata/BitChangeSetManager/"));
context.SetBearerToken(_tokenResponse);
DataServiceCollection <ChangeSetDto> changeSets = new DataServiceCollection <ChangeSetDto>(context);
ChangeSetsListView.ItemsSource = changeSets;
await changeSets.LoadQueryAsync(context.ChangeSets);
}