fix(valheim): fix STATUS_HTTP variable label

[opello]

Description
Fix a copy and paste error where there were multiple SERVER_PUBLIC checkboxes when one was really STATUS_HTTP.

⚙️ Type of change

• ⚙️ Feature/App addition
• 🪛 Bugfix
• ⚠️ Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 🔃 Refactor of current code

🧪 How Has This Been Tested?
This was a straightforward change that I did not test in any way.

📃 Notes:
None.

✔️ Checklist:

• ⚖️ My code follows the style guidelines of this project
• 👀 I have performed a self-review of my own code
• #️⃣ I have commented my code, particularly in hard-to-understand areas
• 📄 I have made corresponding changes to the documentation
• ⚠️ My changes generate no new warnings
• 🧪 I have added tests to this description that prove my fix is effective or that my feature works
• ⬆️ I increased versions for any altered app according to semantic versioning

➕ App addition

If this PR is an app addition please make sure you have done the following.

• 🪞 I have opened a PR on truecharts/containers adding the container to TrueCharts mirror repo.
• 🖼️ I have added an icon in the Chart's root directory called icon.png

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Those checkboxes are there for the reviewer to see what is this all about and
the status of this PR with a quick glance.

[stavros-k]

@all-contributors please add @opello for code

[allcontributors]

@stavros-k

I've put up a pull request to add @opello! 🎉

[truecharts-admin]

This PR is locked to prevent necro-posting on closed PRs. Please create a issue or contact staff on discord if you want to further discuss this