Problem with facename wxComboBox on Linux, especially WSL2

[KeyWorksRW]

Description:

On Windows, a wxComboBox with a large number of entries will display a vertical scrollbar. On Ubuntu 22.04, I get arrows at the top and bottom, but no scrollbar. On both Ubuntu and Fedora on WSL2, there are no arrows or scrollbar, making it impossible to choose an entry that is not visible. This is a significant problem for choosing a facename for a font. The only viable solution I see is to create a wxComboCtrl, probably with a wxListBox as the wxComboPopup.

The other advantage of doing this is that we could probably then use that as a template to support a wxComboCtrl generator.