Restart nginx on app install fail or cancel

src/freedombone-addremove

@@ -75,6 +75,22 @@ fi
                 echo "Restored index screen" >> "$webadmin_install_dir/applog.txt";
             fi
 
+            currently_installing_app_domain=/root/.fbone_currently_installing_app_domain
+            if [ -f "$currently_installing_app_domain" ]; then
+                app_domain=$(cat "$currently_installing_app_domain")
+
+                # if an nginx config was added for the app then remove it
+                # and restart the web server
+                if [ -f "/etc/nginx/sites-available/${app_domain}" ]; then
+                    echo "Removing /etc/nginx/sites-available/${app_domain}" >> "$webadmin_install_dir/applog.txt"
+                    nginx_dissite "${app_domain}"
+                    rm "/etc/nginx/sites-available/${app_domain}"
+                    echo "Restarting nginx" >> "$webadmin_install_dir/applog.txt"
+                    systemctl restart nginx
+                fi
+                rm "$currently_installing_app_domain"
+            fi
+
             exit 1
         else
             exit 0