bug#68765: 30.0.50; Adding window-tool-bar package.

[Eli Zaretskii]

> Date: Mon, 13 May 2024 21:14:16 -0700
> From: Jared Finder <jared@finder.org>
> Cc: Eli Zaretskii <eliz@gnu.org>, 68765@debbugs.gnu.org, philipk@posteo.net,
>  monnier@iro.umontreal.ca
> 
> > Thanks, looks like a good thing to do.
> 
> Thank you!  Final version of all three commits attached.  These address 
> all comments raised on this thread.
> 
> I think after these patches are applied, the remaining work to resolve 
> this would be having the ELPA package added and me updating NEWS and the 
> manual.  I can start on the updates.

Fine by me, please go ahead.