Add Hotkeys for Yes/No File delete dialog box (gtk_widget_add_accelerator)

[Oleksiy-Yakovenko]

Discussed in #3258

^{Originally posted by l-raider November 6, 2025}
Can we get hotkeys for the file delete dialog box like foobar2000 has?
In foobar2000 I can just hit "Y" or "N" for the dialog box rather than navigating with the arrow keys or the mouse for a quick response to this dialog.

GTK calls this accelerator I think: https://docs.gtk.org/gtk3/method.Widget.add_accelerator.html

Deadbeef current dialog:

Foobar2000 dialog:

I use this functionality extensively when cleaning my music folders and it would really help my workflow.