Fixed: Drag-and-Drop Behavior

🛠️ What Was the Issue?

Drag-and-drop actions in form and quiz builders sometimes replaced items instead of inserting them, leading to unexpected order changes.

✅ What’s Fixed

Drag-and-drop now inserts items exactly where dropped. The behavior is consistent, reliable, and works as expected across all positions.

🔍 Key Fixes & Improvements

1. Correct Placement:

   Items insert before the target, not swap.

2. Adjacent Moves:

   Smooth handling for nearby position changes.

3. Consistent Logic:

   Same behavior in both form and quiz builders.

4. Predictable Results:

   No surprises, elements go where you drop them.