lever-action rifle has no sprite

## Testmerges
#10999: 'Fix of various plane related issues' by Blundir at commit f85a7153c4
#11075: 'Ticket Panel (Adminhelps & Mentorhelps)' by GeneriedJenelle at commit 4ad8d0cf87
#11902: 'implement pii scrubbing for sentry' by hry-gh at commit 759efb7bd1
#11724: 'Point Blank Refactor [EXPERIMENTAL]' by TrollerNoob at commit e1277b8075
#12001: 'expands WY sec presets' by realforest2001 at commit fe08c988eb
#12140: 'Tyrargo Rift - Various Alterations' by Steelpoint at commit d03fbaf9d6
#11170: 'Yautja Survivor' by realforest2001 at commit b135abb051
#11666: ' SI-391 Sekhmet Swamp - PvE to PvP Ground Map Conversion' by Steelpoint at commit 0b87d5dd47

## Round ID
33927

## Description of the bug
"This is a lever-action rifle. It is a bulky item.
Welcome to the Wild West!
This gun is levered via Unique-Action, but it has a bonus feature: Hitting a target directly will grant you a fire rate and damage buff for your next shot during a short interval. Combo precision hits for massive damage."
This rifle spawned on Sekhmet Swamp and had no in-hand sprite or anything.

## What's the difference with what should have happened?
I think it should be visible

## How do we reproduce this bug?
1) grab lever action rifle
2) equip it
3) see it's invisible.

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

## Additional details
- Author: Yosheh_3
- Admin: MistChristmas
- Note: This is the base lever action and not the r4t. I dunno why they don't use the same sprites but we probably shouldn't be spawning the base one

Search the repository for the base lever-action rifle and the r4t variant, then inspect how each references in-hand sprites and where the base rifle is spawned on Sekhmet Swamp. Confirm the intended choice with the existing distinction in the issue. Done means the spawned rifle is either replaced with the supported variant or displays correctly when equipped, with the reproduction steps no longer showing invisibility.

Written by the indexing model from the issue text.