Default create_thermal_displacements to False in VASP and forcefield PhononMaker

[janosh]

Motivation: Most people likely won't use the thermal_displacement_matrix resulting from create_thermal_displacements=True but having it on can cause the calculation to fail due to this line in phonopy's _get_disp_matrices

assert (abs(disps.imag) < 1e-1).all()

This change was discussed with @JaGeo but pinging her for final approval.

Full stack trace

INFO:jobflow.managers.local:generate_frequencies_eigenvectors failed with exception:
Traceback (most recent call last):
  File "/Users/janosh/dev/jobflow/src/jobflow/managers/local.py", line 106, in _run_job
    response = job.run(store=store)
               ^^^^^^^^^^^^^^^^^^^^
  File "/Users/janosh/dev/jobflow/src/jobflow/core/job.py", line 584, in run
    response = function(*self.function_args, **self.function_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/janosh/dev/atomate2/src/atomate2/common/jobs/phonons.py", line 232, in generate_frequencies_eigenvectors
    return PhononBSDOSDoc.from_forces_born(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/janosh/dev/atomate2/src/atomate2/common/schemas/phonons.py", line 397, in from_forces_born
    phonon.run_thermal_displacement_matrices(
  File "/Users/janosh/.venv/py311/lib/python3.11/site-packages/phonopy/api_phonopy.py", line 2927, in run_thermal_displacement_matrices
    tdm.run()
  File "/Users/janosh/.venv/py311/lib/python3.11/site-packages/phonopy/phonon/thermal_displacement.py", line 359, in run
    self._get_disp_matrices()
  File "/Users/janosh/.venv/py311/lib/python3.11/site-packages/phonopy/phonon/thermal_displacement.py", line 404, in _get_disp_matrices
    assert (abs(disps.imag) < 1e-10).all()

[JaGeo]

@janosh , agreed. The default should be false! Thanks for tackling this!