Make the different API endpoints for Recipe and RecipeStub more consistent

[christianlupus]

Topic and Scope

Closes #1827

Formal requirements

There are some formal requirements that should be satisfied. Please mark those by checking the corresponding box.

• I did check that the app can still be opened and does not throw any browser logs
• I created tests for newly added PHP code (check this if no PHP changes were made)
• I updated the OpenAPI specs and added an entry to the API changelog (check if API was not modified)
• I notified the matrix channel if I introduced an API change

[christianlupus]

/approve

[nextcloud-cookbook-bot]

Automatically approved by GitHub action on behalf of /approve

[codecov]

Codecov Report

Merging #1834 (bda4050) into master (410d589) will increase coverage by 0.18%.
Report is 1 commits behind head on master.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1834      +/-   ##
==========================================
+ Coverage   79.48%   79.67%   +0.18%     
==========================================
  Files          87       89       +2     
  Lines        2559     2573      +14     
==========================================
+ Hits         2034     2050      +16     
+ Misses        525      523       -2     

Flag	Coverage Δ
integration	21.88% <100.00%> (+0.66%)	⬆️
migration	5.86% <0.00%> (-0.04%)	⬇️
unittests	56.00% <0.00%> (-0.31%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
lib/Helper/Filter/JSON/RecipeIdCopyFilter.php	100.00% <100.00%> (ø)
lib/Helper/Filter/RecipeStubFilter.php	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes