Fixes incorrect floating objects/incorrect tiles/incorrect area/HEFA …

…cult symbol on USS Almayer (#4556)

# About the pull request

Title

# Explain why it's good for the game

In order of title

Bug, missed them in last PR, bug, HEFA knight stuff shouldn't be on
Almayer

Update: I'm also removing the Piano in this PR because it cant be
slashed by xenos

# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl:
maptweak: Fixes floating Cameras and Light in the maint tunnels north of
south of brig
maptweak: Fixes incorrect Shower tiles in maint shower north of
engineering
maptweak: Fixes incorrect area in maint south of VC bunk
maptweak: Removes Piano from USS Almayer upper lifeboat area
/:cl: