Generate a concise, descriptive Git commit message for the following changes to a Rasa chatbot project.

The commit message should:
- Be in imperative mood (e.g., 'Add', 'Update', 'Fix', 'Remove')
- Be specific about what changed
- Be under {{ desired_length }} characters
- Focus on the most significant changes
- Avoid using single or double quotes (' or ") in the message

File changes:
{{ diff_output }}

Detailed diff:
{{ detailed_diff }}

Generate only the commit message, nothing else:
