xfce mixer and plugin fixed by default

xfce-settings/etcskel/.config/xfce4/panel/panels.xml

@@ -25,7 +25,7 @@
 			<item name="pager" id="11888131361"/>
 			<item name="tasklist" id="11888145122"/>
 			<item name="xkb-plugin" id="11896827708"/>
-			<item name="xfce4-mixer" id="11888134323"/>
+			<item name="xfce4-mixer-plugin" id="11888134323"/>
 			<item name="systray" id="11888132202"/>
 			<item name="clock" id="14"/>
 		</items>

xfce-settings/etcskel/.config/xfce4/panel/xfce4-mixer-11888134323.rc

-[mixer-plugin]
-Device=default
-LauncherCommand=xfce4-mixer
-LauncherRunInTerminal=false
-LauncherUseStartupNotification=false
-

xfce-settings/etcskel/.config/xfce4/panel/xkb-plugin-11896827708.rc

-display_type=0
-per_app_layout=1
-default_group=0
-