Tracker doesn't work correctly if target is on a shuttle

### Testmerges

#3985: 'Xeno endgame content part 1: pylons and larva' by morrowwolf at commit 48336c4b99 #4024: 'Log Updates' by realforest2001 at commit 0c7bf41d0d #3726: 'New facehugger strain: Watcher' by Hopekz at commit 554bc58f1c #3942: 'Updates Yautja Plasma Rifle' by Steelpoint at commit 2b02926713 #4063: 'Yautja Change Holder' by realforest2001 at commit 42f2cf08e5 #4067: 'Research Biohazard Lockdown' by realforest2001 at commit 6e263a8dce #4081: 'Auxiliary Support Officer' by morrowwolf at commit 0cdbf93ea7

### Description of the bug

If your tracker's target is on a shuttle (landed), the tracker just shows a circle, as if target was on another Z-level.

### What's the difference with what should have happened?

The tracker should show the direction to the target on the shuttle.

### How do we reproduce this bug?

1. Spawn yourself as xeno.
2. Put your Queen on Alamo
3. Look at tracker.

### Issue Bingo

- [X] Issue could be reproduced at least once
- [X] Issue happened in a recent (less than 7 days ago) round
- [X] Couldn't find an existing issue about this (https://github.com/cmss13-devs/cmss13/issues)