You can flip floor decals

## Testmerges
#6071: '[V] Sorokyne Strata: fixes and changes .' by Venuska1117 at commit 77b1ffb107
#6388: 'gayons' by 567Turtle at commit 4f9151f1ba
#6334: 'Xenomorph Endgame' by Git-Nivrak at commit 698ef07273
#6400: 'Adds Sunsets to Roundstart, adds Sunrises to Marine Victories, and Survs can hear Evo Announcement Screeches now' by GrrrKitten at commit 9abfb208ad

## Round ID
22724

## Description of the bug
You can flip floor decals if you place a table on them

## What's the difference with what should have happened?
Not be able to flip them

## How do we reproduce this bug?
1.Get a table
2.Find a decal, one is above the door in the north ert doc
3.place the door on the decal
4.flip the decal on harm intent

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

## Additional details
- Author: SolaAqua
- Admin: Biolock
- Note: N/A

Start by reproducing the issue using the steps in the report: place a table over a floor decal and attempt to flip it on harm intent. Trace the decal and table interaction code to identify which action permits flipping, then verify that decals cannot be flipped in this arrangement.

Written by the indexing model from the issue text.