Add ability to create own whole course templates

To enhance flexibility and efficiency in course creation, we want to add the ability to create own whole course templates:

• Allows customization of entire course structures to fit specific needs.

• Saves time by reusing well-structured templates for different courses.

• Ensures consistency and quality across multiple courses.

Goal:

To improve course creation efficiency and maintain high standards by enabling users to create and manage their own whole course templates.