Aims phonon tutorials

[tpurcell90]

Summary

Include a summary of major changes in bullet points:

• Adds a tutorial for FHI-aims phonon workflows.

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[tpurcell90]

@JaGeo Here is the FHI-aims phonon documentation PR

[tpurcell90]

Also I think the VASP tutorial should have si_structure = Structure.from_file(TEST_DIR / "structures" / "Si_diamond.cif")

[JaGeo]

Also I think the VASP tutorial should have si_structure = Structure.from_file(TEST_DIR / "structures" / "Si_diamond.cif")

Thanks for pointing this out. Will check again and potentially fix it.

Overall: thank you very much for the tutorial This is very helpful!