feat(content): adds a shark plush sleep aid

[cutecacodemon]

Required

• I wrote the PR title in conventional commit format.
• I ran the code formatter.
• I linked any relevant issues using github keyword syntax so it can be closed automatically.
• I have committed my changes to new branch that isn't main so it won't cause conflict when updating main branch later.

Purpose of change

I noticed there was a severe lack of shark plushies in BN so I decided to add one myself

Describe the solution

I have added a shark plush item and several spawn pool locations for it, the sprite was graciously done by inthedark4557 who can be found on several social media platforms

Describe alternatives you've considered

no shark plush :(

Testing

I have tested spawn pool locations, made sure the sprite appears in game and has a sprite when wielded

Additional context

Credits to inthedark4557 for the sprite and robbie4179 for helping me fix issues with getting it in the game, this is my first ever pr and I have 2 days experience with coding so forgive me if there's any issues

[autofix-ci]

Autofix has formatted code style violation in this PR.

I edit commits locally (e.g: git, github desktop) and want to keep autofix

1. Run git pull. this will merge the automated commit into your local copy of the PR branch.
2. Continue working.

I do not want the automated commit

1. Format your code locally, then commit it.
2. Run git push --force to force push your branch. This will overwrite the automated commit on remote with your local one.
3. Continue working.

If you don't do this, your following commits will be based on the old commit, and cause MERGE CONFLICT.

[RoyalFox2140]

Seems okay. The authorship on the graphics being an artist that isn't on Github at all seems a bit hard to properly credit, but I'm willing to merge because credit seems to have been given in the way the artist requested.

Thoughts from @chaosvolt

[chaosvolt]

Thoughts from @chaosvolt

I'll want to remember to merge the sprite into the normal sprite sheet instead of having a bespoke image containing only a single sprite, but we can wrangle that another day.

[RoyalFox2140]

Thoughts from @chaosvolt

I'll want to remember to merge the sprite into the normal sprite sheet instead of having a bespoke image containing only a single sprite, but we can wrangle that another day.

New contributor woes