Modify installed system .xinitrc to launch Openbox and MBetterClient in terminal

- Updated .xinitrc for mbetterclient user autologin
- Launch Openbox window manager first
- Launch MBetterClient_wrapper.sh in xterm terminal
- Provides proper desktop environment with terminal-based MBetterClient
- Maintains SSL and web-host configuration options

config/includes.chroot/usr/local/bin/auto-installer.sh

@@ -590,8 +590,13 @@ EOF
 # Set keyboard layout
 setxkbmap us
 
-# Launch MBetterClient via wrapper with SSL and web host support
-exec /usr/local/bin/MbetterClient_wrapper.sh --ssl --web-host 0.0.0.0
+# Launch Openbox window manager
+exec openbox-session &
+# Give Openbox a moment to start
+sleep 1
+
+# Launch MBetterClient in a terminal
+xterm -e /usr/local/bin/MbetterClient_wrapper.sh --ssl --web-host 0.0.0.0 &
 EOF
     chmod +x "$TARGET_MOUNT/home/mbetterclient/.xinitrc"