Option to open chatbot links in the same tab

Please add a Chat Interface setting that controls how links in AI responses and action buttons open:

- Open in a new tab (current default)

- Open in the same tab

This is especially useful for embedded widgets and iframes when links point to pages on the same website. Ideally the setting is global, with an optional override per link or action.

We manage one multilingual chatbot across .nl, .de and .com domains. For internal navigation, opening in the same tab keeps visitors in the correct website context.