Fix bug in custom peak_kwargs input into find_peaks

[cdunn314]

When energy calibrating the gamma detectors used for foil activation analysis, they are first energy calibrated. This is done through the get_calibration_data() function, which employs the SciPy.signal find_peaks() function with certain peak parameters to find the appropriate peaks in the spectrum that correspond to the check source gamma peaks. However, when the default peak parameters don't work, the user may input custom peak parameters through the peak_kwargs dictionary that is a keyword argument to get_calibration_data(). Currently, this dictionary uses Nuclide classes as keys, but this creates an error. This PR updates the dictionary to use the names of the nuclides as dictionary keys for the peak parameters as obtained from Nuclide.name.

[codecov]

Codecov Report

❌ Patch coverage is 93.33333% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 87.96%. Comparing base (e3f81c4) to head (e5c5318).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
...lbox/neutron_detection/activation_foils/compass.py	93.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #92      +/-   ##
==========================================
+ Coverage   87.25%   87.96%   +0.70%     
==========================================
  Files          19       19              
  Lines        1562     1570       +8     
==========================================
+ Hits         1363     1381      +18     
+ Misses        199      189      -10     

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[RemDelaporteMathurin]

I think this is ok @cdunn314 could you add a short test to catch this bug?

[cdunn314]

I kind of overdid the tests, but now it's well tested I think!

[cdunn314]

@RemDelaporteMathurin If you're good with the tests and refactoring, can you approve this PR?