Meta-explanation of Transparent AI feature

[stefankreitmayer]

As a user When I switch on Transparent AI In order to understand what this feature is about I want to see a message

Task

• [x] Open a flyout message underneath the "Transparent AI" when switching on
• [x] Ensure that the text clarifies the purpose of the feature and how to use it
• [ ] User test within team -> feedback -> improve as needed