Fix moving default nginx configuration

seqs/jitsi.sh

@@ -85,7 +85,7 @@ step_8() {
 step_9_info() { echo "Move automatically generated $toolName virutal host to new configuration directory"; }
 step_9() {
   exe mv /etc/nginx/sites-available/*.conf /etc/nginx/conf.d
-  exe mv /etc/nginx/conf.d/default /etc/nginx/sites-available
+  exe mv /etc/nginx/conf.d/default.conf /etc/nginx/sites-available
   exe service nginx restart
   echo " [I] Check /etc/nginx/conf.d for unwanted configurations"
 }