Add lxqt-panel default config

src/etc/xdg/xdg-Lubuntu/lxqt/panel.conf

@@ -0,0 +1,43 @@
+panels=panel1
+
+[panel1]
+plugins=mainmenu, desktopswitch, quicklaunch, showdesktop, taskbar, mount, volume, tray, statusnotifier, worldclock
+position=Bottom
+desktop=0
+
+[mainmenu]
+type=mainmenu
+
+[desktopswitch]
+type=desktopswitch
+
+[quicklaunch]
+type=quicklaunch
+apps\1\desktop=/usr/share/applications/pcmanfm-qt.desktop
+apps\2\desktop=/usr/share/applications/org.qupzilla.QupZilla.desktop
+apps\size=2
+alignment=Left
+
+[taskbar]
+type=taskbar
+
+[tray]
+type=tray
+
+[mount]
+type=mount
+
+[worldclock]
+type=worldclock
+
+[volume]
+device=0
+type=volume
+
+[showdesktop]
+alignment=Right
+type=showdesktop
+
+[statusnotifier]
+alignment=Right
+type=statusnotifier