Give prompt during reconfigure (#12575)

[Jürgen Spitzmüller]

Am Montag, dem 15.05.2023 um 12:38 +0200 schrieb Pavel Sanda:
> On Sun, May 14, 2023 at 08:54:28PM -0400, Scott Kostyshak wrote:
> > Any objection to the patch here?
> 
> I would personally prefer to skip first confirmation dialog and just
> proceed to the second one.
> You can merge the text of both dialogs if you feel the need to be
> more informative...

I agree. And I think also the second dialog should be hideable. This is
information only useful to newbies, and I can see it getting annoying.

And it should probably use our own GuiAlert rather than QMessageBox
directly (but this is just nitpicking).

-- 
Jürgen