docs: add DMP'26 Week 9 blog By Stuti Jain

[stutijain2006]

Overview

This PR improves the Lesson Plans infrastructure by allowing the Lesson Plans and Explorer Journal interfaces to coexist with the main Music Blocks workspace.

It also separates lesson-specific data from the core implementation to make the system easier to maintain and extend with additional lessons.

Changes

Draggable Lesson Plan Interfaces

• Made the Lesson Plans panel draggable.
• Made the Explorer Journal panel draggable.
• Learners can now reposition these panels within the Music Blocks workspace.
• Other toolbar features can be accessed without closing Lesson Plans.
• Lesson progress and context are preserved while interacting with other parts of the application.

Lesson Data Separation

• Moved lesson-specific information into separate JSON files.
• Separated lesson content from the main Lesson Plans implementation.
• Lesson descriptions, rewards, badges, extra actions, and hints can now be maintained independently.
• Simplified the process of adding and editing future lessons.

Why?

As the Lesson Plans system grows, learners should be able to use Lesson Plans alongside the existing Music Blocks tools without losing their progress.

At the same time, keeping all lesson content inside the main implementation makes adding new lessons increasingly difficult.

This update addresses both issues by improving the panel behaviour and introducing a more maintainable, data-driven lesson structure.

Testing

• Tested the draggable Lesson Plans interface.
• Tested the Explorer Journal alongside Lesson Plans.
• Verified that other Music Blocks toolbar features can be accessed while the panels remain open.
• Verified that lesson-specific data can be loaded from the new JSON structure.

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