ENA-229: Output connection location can be confusing when dragging long reporters

Expected Behavior

When a user drags an input block, they should be able to drop the block into the insertion point when they release their mouse over the insertion point.

Actual Behavior

The left coordinate of the input block is used to determine what insertion marker/input "hole" to place the dragged block. This is confusing, especially on longer input blocks where the center or grabbed part of the block is far from the left edge of the block.

Steps to Reproduce

Drag any longish input and try to place it into another block. Notice the selection doesnt use the center of the block or the mouse position, but instead uses the left edge.

Operating System and Browser

Any OS, any browser

Start by reproducing the drag-and-drop behavior with a long input block and trace the logic that chooses the insertion marker or input hole. Check how the dragged block's left edge and mouse position are used. Done means the drop target follows the grabbed or centered portion of the block, with coverage for long inputs.