Completed notes should be at the bottom

[Abijeet]

When a note has been marked as completed, it should automatically move to the bottom of the notebook. Marking it incomplete again should bring it back to its original position.

[Abijeet]

• Take care of adding notes. They should appear at the top.
• Completed note should stay at the bottom, and when a note is completed it should go to the bottom.
• Completed notes that are marked as incomplete should go to the top of notebook.