Sets the debug information for this.
Debug information will be shown on the Troubleshooting page. It's intended to be attached to issue reports when reporting issues against the application.
`AdwAboutWindow` provides a quick way to save debug information to a file. When saving, [property@AboutWindow:debug-info-filename] would be used as the suggested filename.
Debug information cannot contain markup or links.
| this |
an about window |
| debug_info |
the debug information |