eframe0.27 cannot get the drag_and_drop input on fedora 39 gnome

I had tried [[](https://github.com/emilk/egui/tree/master/examples/file_dialog) ](https://github.com/emilk/egui/tree/master/examples/file_dialog) on mac. It works for drag and drop files.
But, when I run it on fedora 39 gnome desktop ,the code can not get the drag input event.

Start with examples/file_dialog and reproduce the drag-and-drop behavior on Fedora 39 with the GNOME desktop, comparing it with the reported working behavior on macOS. Trace where the example receives drag input and determine why the Fedora run does not receive the event; done means file drag-and-drop works there without breaking the macOS behavior.

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