BUG: Adding a dm3 name is not showing progress

[steffenkux]

Current behavior

When adding a dm3 name, pressing "Add" closes the widget, but it takes some time until the new conversation appears. It seems unclear, of the action is successful or not or in progress.

Expected behavior

When pressing the add button, the progress wheel is coming and the widget is only closed if the action is finished. OR A new (empty) conversation is added immediately and shows information (like "adding new conversation to ...") util the new conversation is there.