FLASH PR - Spectrum Viewer: Export ShutterCount corrected all_norm if ShutterCount correction applied

[JackEAllen]

Issue

Not filed as issue

Description

Add a description of the changes made.

Previously if a user exported the spectrum with normalisation applied and ShutterCount correction, all_norm would export the the normalised spectrum without the ShutterCount correction applied. This PR resolves this issue. the ShutterCount corrected normalised spectrum is not exported if ShutterCount correction has been applied.

Testing

Describe the tests that were used to verify your changes.

• Manually tested by comparing output csv files for all_norm using applying only normalisation and normalisation with ShutterCount Correction

Acceptance Criteria

How should the reviewer test your changes?

• Compare all_norm column within exported data when exporting with only normalisation and applied against normalisation with ShutterCount correction applied. Also compare against the main branch with normalisation and ShutterCount correction applied which will only export the normalised spectrum for all_norm

Documentation

How have you changed the documentation to reflect your changes? All changes should be noted in the appropriate file in docs/release_notes NA

[coveralls]

coverage: 73.137%. remained the same when pulling 5161bd554c2ba35f47e72ea20156be033b88a5a0 on export_shuttercount_corrected_spectra into dce729e5147779ad642d6b053017acdc4c9dc560 on main.