feat: added missing permissions

[Jaskowicz1]

This PR adds the missing permissions listed on discord's docs

Code change checklist

• I have ensured that all methods and functions are fully documented using doxygen style comments.
• My code follows the coding style guide.
• I tested that my change works before raising the PR.
• I have ensured that I did not break any existing API calls.
• I have not built my pull request using AI, a static analysis tool or similar without any human oversight.

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[Jaskowicz1]

We should really rewrite how our permissions work at some point, having to keep making functions to check a permission is rather annoying and overly repetitive.

I've got an idea on what we can do, I'll make a draft PR with it soon to see what we think.