Changelog for Demo Generator 0.16.0

Changes

• Redirect to UI set to Dashboard instead of Network
• story_modeller: Generate stories with specific actors (PR, #6663)
• story_modeller: link incident actors to history events (PR, #6692)
• story_modeller: Remove option to create a incident from event templates (PR, #6779)
• story_modeller: schedule incident futures (PR, #6664)
• story_modeller: add support for additional incident future transitions (PR, #6664)
• story_modeller: Add support for export and import of story modeller models (PR, #6769)