Add instruction for using leader device with movej and bimanual_movej controllers

[YoungWook0533]

• Add instruction for using leader device with movej and bimanual_movej controllers

[gemini-code-assist]

Code Review

This pull request updates the documentation in advanced_motion_controller_ai_worker.md to include instructions and launch configuration snippets for using a leader device with movej and bimanual_movej. The feedback highlights that the controller name 'joint_trajectory_command_broadcaster' in both added code blocks should be updated to separate left and right controllers to match the remapping arguments and prevent spawner failures.

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[nhw-robotis]

GOOD

[sunghowoo]

LGTM