Added Bitwarden.

Updated Messenger and Discord to goto the right menu area

DesktopFiles/Bitwarden.desktop

@@ -0,0 +1,11 @@
+[Desktop Entry]
+Version=1.0
+Type=Application
+Name=Bitwarden
+Comment=Bitwarden Password Manager
+Exec=/home/pi/webapps/bitwarden.sh
+Icon=/home/pi/webapps/icons/bitwarden.svg
+Path=/home/pi/webapps
+Terminal=false
+StartupNotify=false
+Categories=Security;