Added Hidden=True nm-applet.desktop to autostart so nm.applet doesn't autostart. Change default icon theme from Papirus to ePapirus

Summary:
Added Hidden=True nm-applet.desktop to xdg autostart so nm.applet doesn't autostart. This will be good since we plan to use network-manager-gnome for connection-editor but not for tray applet.
Change default icon theme from papirus to ePapirus... which make dark icons gray instead of black so they look better in dark background

Test Plan:
See if icons change to ePapirus.
See if nm-applet.desktop is present in ~.config/autostart with Hidden=true entry

Reviewers: wxl, tsimonq2

Subscribers: apt-ghetto, hmollercl

Differential Revision: https://phab.lubuntu.me/D11

debian/changelog

@@ -1,3 +1,10 @@
+lubuntu-default-settings (19.10.1) eoan; urgency=medium
+
+  * Set default icon theme to ePapirus which is grey instead of black and looks better for dark icons over dark background (printer, about, skanlite, etc...)
+  * Added "Hidden=true" nm-applet.desktop to autostart so nm-applet is not autostarted.
+
+ -- Hans P Möller <hmollercl@lubuntu.me>  Sun, 09 Jun 2019 21:15:54 -0400
+
 lubuntu-default-settings (19.04.2) disco; urgency=medium
 
   [ Hans P Möller ]

src/etc/xdg/xdg-Lubuntu/autostart/nm-applet.desktop

@@ -0,0 +1,15 @@
+[Desktop Entry]
+Comment=Manage your network connections
+Exec=nm-applet
+Hidden=true
+Icon=nm-device-wireless
+Name=Network
+NoDisplay=true
+NotShowIn=KDE;GNOME;
+Terminal=false
+Type=Application
+X-GNOME-Bugzilla-Bugzilla=GNOME
+X-GNOME-Bugzilla-Component=nm-applet
+X-GNOME-Bugzilla-Product=NetworkManager
+X-GNOME-UsesNotifications=true
+X-Ubuntu-Gettext-Domain=nm-applet

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

@@ -1,5 +1,5 @@
 [General]
-icon_theme=Papirus
+icon_theme=ePapirus
 icon_follow_color_scheme=false
 theme=Lubuntu Arc
 single_click_activate=false