Change firewall name for jitsi

src/freedombone-app-jitsi

         exit 63983
     fi
     firewall_add videobridge ${VIDEOBRIDGE_PORT}
-    firewall_add_range videobridge 10000 20000 udp
+    firewall_add_range jitsi 10000 20000 udp
 
     # meet
     debconf-set-selections <<< "jitsi-meet jitsi-meet/cert-choice multiselect 1"