gnome-bluetooth 42 changes

[Bastien Nocera <bnocera redhat com>]

Hey,

gnome-bluetooth alpha 2 was released today. I'll be attaching the NEWS
items for 42.alpha and 42.alpha.2 to this message, but for the TLDR
gnome-bluetooth got split into UI and non-UI libraries and neither are
API or ABI compatible with the old 3.x libraries.

gnome-control-center patch to use the new UI library is already merged:
https://gitlab.gnome.org/GNOME/gnome-control-center/-/merge_requests/1150

gnome-shell patch to use the new non-UI library:
https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2055

Please make sure to include all those changes when updating
gnome-bluetooth to the latest version.

--✀--
ver 42.alpha.2:
This version of gnome-bluetooth splits the libraries into UI and non-UI
versions. The UI library is only exposed as a native library for the benefit
of gnome-control-center, and the non-UI library is only exposed as an
introspected library for the benefit of gnome-shell.

ver 42.alpha:
This version of gnome-bluetooth contains major API changes, but it is
parallel-installable with the GTK 3-based, 3.34.x versions of the
library.

- Port library to GTK4
- Remove chooser widgets from library
- Remove chooser UI from bluetooth-sendto
- Make bluetooth-sendto optional
- Replace canberra-gtk dependency with gsound
- GtkTreeModel-based API was replaced by a GListModel-based API
- Loads of bug fixes, many new tests
- Make changes to the way the default adapter is selected, see README.md
  for details
--✀--

Cheers