[SPZ2-817] Building deletion skips buildings when dragging

[livid hollow]

if i hold the delete button and quickly move over the buildings it skips over a bunch of them, and doesnt delete them all, incase you need more info it was a long conveyor and it was vertical

[wintry light]

It's expected, especially on lower FPS - the cursor moves too fast. We need to actually raymarch inbetween, but thats not in yet (but planned!)

building deletion skips buildings when dragging