feat: add a get device type function to utils

[simlang]

add a get device type function to utils to have a clear seperation between device, device_type and device_map

Description

Related Issue

Fixes #(issue number)

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

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
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

Additional Notes

---

Note

Introduce get_device_type in utils and refactor config/tests to use it for device compatibility checks.

• Utils:
  • Add get_device_type(model) returning the device type via split_device(get_device(model))[0].
  • Export/import updates to include get_device_type.
• Config (src/pruna/config/pre_smash_routines.py):
  • Use get_device_type(model) instead of split_device(get_device(model))[0] for runs_on checks.
  • Clean up imports (remove cast).
• Tests (tests/common.py):
  • Replace device assertions to use get_device_type(model).
  • Update imports accordingly.

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[begumcig]

you are the bestestest

[johannaSommer]

I will allow it but I am not pleased