medical tent roof unaffected by blur via bloodloss

## Testmerges
#9894: 'Multiz indicator' by Detective-Google at commit a1fd9677a0
#9978: 'Xeno Time Checks' by realforest2001 at commit f86f8e3705
#9872: ' Multiz Bigred [MDB IGNORE]' by spartanbobby at commit cd86d53c29
#7023: 'Research Rework Part Two: The Contract System.' by kiVts at commit 2bcf32efda
#10379: '[TM ONLY]Disable queen seethrough' by Blundir at commit a00bf1fb54
#10280: 'The Smartgun Update' by Blundir at commit 5ad82fa35b
#10376: 'CIA vendor access fix and content tweak' by realforest2001 at commit 2f624a20d6

## Round ID
29406

## Description of the bug
when low on blood, marine vision blurs everything other than the top of the uscm medical tent

## What's the difference with what should have happened?
the roof should have been affected by the blur

## How do we reproduce this bug?
1) deploy a unmc medical tent
2) be a marine outside the medical tent
3) be low on blood (via bleeding or otherwise)
4) observe as the tent roof is not affected by the the vision blur

## Attached logs
```
N/A
```

## Additional details
- Author: Purplepotato1
- Admin: LTNTS
- Note: None

Reproduce the issue by deploying a UNMC medical tent, standing outside it as a marine, and becoming low on blood. Trace the medical tent roof and low-blood vision-blur handling; done means the tent roof is also blurred consistently with the rest of the scene.

Written by the indexing model from the issue text.