Add modification to aims input to match atomate2 magnetic order script

[tpurcell90]

How it deals with spins is not through magmoms, but FHI-aims uses magmoms exclusively

Summary

Modifying FHI-aims inputs to work with the magnetism workflows in atomate2

Todos

If this is work in progress, what else needs to be done?

Checklist

• [x] Google format doc strings added. Check with ruff.
• [x] Type annotations included. Check with mypy.
• [x] Tests added for new features/fixes.
• [ ] If applicable, new classes/functions/modules have duecredit @due.dcite decorators to reference relevant papers by DOI (example)

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pip install -U pre-commit
pre-commit install