[backend] fix attributes to display in csv mapper

[lndrtrbn]

Proposed changes

• Remove some attributes
• Add missing ref attributes for observables by fixing how they are computed

Related issues

• [CSV Mapper] - Some relations ref is missing on some entity types #5838

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

I wrote some tests but there are in an other PR about csv mapper that is not yet merged. But this part will be tested when the other PR will be merged.

[codecov]

Codecov Report

Attention: 15 lines in your changes are missing coverage. Please review.

Comparison is base (ab8b8af) 65.41% compared to head (f0c7a5c) 65.97%.
Report is 4 commits behind head on master.

Files	Patch %	Lines
...src/modules/internal/csvMapper/csvMapper-domain.ts	11.76%	15 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5883      +/-   ##
==========================================
+ Coverage   65.41%   65.97%   +0.56%     
==========================================
  Files         532      539       +7     
  Lines       62501    63077     +576     
  Branches     5028     5602     +574     
==========================================
+ Hits        40884    41616     +732     
+ Misses      21617    21461     -156     

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[marieflorescontact]

locally tested 👌 that observables have author, external ref, label, markings, score and location don't have anymore precision