Pointer events using camera distance instead of player distance in UI scene

## Description

The UI scene is using camera distance for pointer events instead of player distance.

## Context

From Gon's report: "the pointer events is taking the camera distance instead of the player"

Lucas noted that PointerEvent has 2 distances (one from camera, one from player), but in this case the UI scene needs to be fixed to use the correct distance value.

## Expected Behavior

Pointer events in the UI scene should use player distance, not camera distance.

## Additional Context

Screenshot attached by Gon showing the issue.

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Requested by rob via Slack