mate-panel 1.23.1 release

Changes since the last release: v1.23.0...v1.23.1

mate-panel 1.23.1

tx: update resource for transifex
Wayland support for panel-toplevel.c
Fix unused variable in panel-widget.c
Wayland support for panel-layout.c
Wayland support for panel-profile.c
Wayland support for main.c
Wayland support for panel-applet-container.c
Fix out-of-process applets on X11 by fixing mate-panel-applet.c
Wayland support for mate-panel-applet.c
Wayland support for libegg
In mate-panel-applet-factory.c, only set screen when used
Make system-tray X11-only
Make panel-struts X11-only
Reinit panel-multimonitor when screen is changed
Reinit panel-multimonitor when a monitor is invalidated
Make panel-multimonitor Wayland ready
Update to the new panel_multimonitor functions
Refactor panel_multiscreen functions into panel_multimonitor ones
Rename panel-multiscreen files panel-multimonitor
Make panel-background Wayland ready
Make panel-background-monitor X11-only
CI: add gtk-layer-shell git repo
Strings resistance
Fix Makefile.am to install in a given prefix path
Error in the correct place when applets are loaded on a platform they don't support
Add supported platform values to *.mate-panel-applet files
Load and store what platforms applets support
panel-addto support disabling applets
Panel addto Wayland support
Add MATE_PANEL_APPLET_LIB_PREFIX environment variable
Switch out wayland protocols for gtk-layer-shell dependency
Update FSF address
revert menu-bar: transfer focus correctly on alt-F1
na-tray: avoid deprecated g_type_class_add_private
Create FUNDING.yml
fix reloading the default layout after panel reset
fix random crashes on panel reset
[mate-panel] Avoid deprecated g_type_class_add_private
[libmate-panel-applet] Avoid deprecated g_type_class_add_private
Set compressed="true" for gresource text files
panel-toplevel: Clarify calculation precedence for '&' and '?'
button-widget: Clarify calculation precedence for '&' and '?'
Determine libwnck version during configure
Add version check for libwnck
window-list: Show window previews on hover
Fix panel applet keyboard focus trap
[ci] Add cppcheck html report