Fix/1210 recipe filtering resulting in non-contiguous arrays

[christianlupus]

Closes #1210

[github-actions]

Unit Test Results

     27 files       27 suites   6m 42s ⏱️
   476 tests    476 ✔️ 0 💤 0 ❌
4 284 runs  4 283 ✔️ 1 💤 0 ❌

Results for commit 2425c93.

[codecov]

Codecov Report

Merging #1222 (2425c93) into master (8f9df65) will increase coverage by 0.04%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1222      +/-   ##
==========================================
+ Coverage   74.62%   74.66%   +0.04%     
==========================================
  Files          85       85              
  Lines        2376     2380       +4     
==========================================
+ Hits         1773     1777       +4     
  Misses        603      603              

Flag	Coverage Δ
integration	20.58% <100.00%> (+0.13%)	⬆️
migration	3.90% <0.00%> (-0.01%)	⬇️
unittests	54.28% <100.00%> (+0.07%)	⬆️

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Impacted Files	Coverage Δ
lib/Helper/Filter/JSON/FixIngredientsFilter.php	100.00% <100.00%> (ø)
lib/Helper/Filter/JSON/FixInstructionsFilter.php	100.00% <100.00%> (ø)
lib/Helper/Filter/JSON/FixToolsFilter.php	100.00% <100.00%> (ø)