[#706] Resutaattype filter - Backend

[SilviaAmAm]

Partly fixes #706

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 91.66667% with 2 lines in your changes missing coverage. Please review.

Project coverage is 90.37%. Comparing base (b10f830) to head (9bd92fb).

Files with missing lines	Patch %	Lines
backend/src/openarchiefbeheer/zaken/api/views.py	90.47%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #708      +/-   ##
==========================================
+ Coverage   90.30%   90.37%   +0.06%     
==========================================
  Files         215      215              
  Lines        6357     6377      +20     
  Branches      675      675              
==========================================
+ Hits         5741     5763      +22     
+ Misses        616      614       -2     

Flag	Coverage Δ
backend	91.03% <91.30%> (-0.01%)	⬇️
jest	32.71% <0.00%> (ø)
storybook	86.40% <100.00%> (+0.17%)	⬆️

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