Added Matra theme to mate and xfce

editions/mate

editions/xfce

overlays/mate/etc/lightdm/lightdm-gtk-greeter.conf

overlays/mate/etc/lightdm/lightdm.conf

overlays/mate/etc/skel/.config/caja/accels

overlays/mate/etc/skel/.config/caja/desktop-metadata

overlays/mate/etc/skel/.config/dconf/user

...te/etc/skel/.config/manjaro/manjaro-settings-manager.conf

overlays/xfce/etc/lightdm/lightdm-gtk-greeter.conf

overlays/xfce/etc/lightdm/lightdm.conf

overlays/xfce/etc/skel/.config/dconf/user

...ce/etc/skel/.config/manjaro/manjaro-settings-manager.conf

overlays/xfce/etc/skel/.config/xfce4/panel/whiskermenu-7.rc

.../skel/.config/xfce4/xfconf/xfce-perchannel-xml/thunar.xml

...config/xfce4/xfconf/xfce-perchannel-xml/xfce4-desktop.xml

.../xfce4/xfconf/xfce-perchannel-xml/xfce4-mime-settings.xml

.../.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-panel.xml

.../xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml

...el/.config/xfce4/xfconf/xfce-perchannel-xml/xsettings.xml