added removal of spaces when inserting ip addresses

- fixed server sharing when sharing a server available only for connection when choosing a server with full access
- removed the notification about an empty backup file when the user closes the file dialog without selecting anything

client/ui/controllers/settingsController.cpp

@@ -85,7 +85,6 @@ void SettingsController::restoreAppConfig()
                                QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation), "*.backup");
 
     if (fileName.isEmpty()) {
-        emit changeSettingsErrorOccurred(tr("Backup file is empty"));
         return;
     }