Update current server on info tab since it can change at run-time

src/controller.cpp

@@ -297,12 +297,19 @@ void Controller::processInfo(const json& info)
         main->disableRecurring();
 }
 
-void Controller::getInfoThenRefresh(bool force) 
+void Controller::getInfoThenRefresh(bool force)
 {
     qDebug()<< __func__;
-    if (!zrpc->haveConnection()) 
+    if (!zrpc->haveConnection())
         return noConnection();
 
+    // Update current server in Info Tab
+    auto current_server = Settings::getInstance()->getSettings().server;
+    ui->current_server->setText(current_server);
+
+    // no need to update sticky server because currently there is no
+    // way to change that at run-time via GUI
+
     static bool prevCallSucceeded = false;
 
     zrpc->fetchInfo([=] (const json& reply) {