Replace .length and .count with .size on app/views/admin/

[xaylax]

Fixes #8519

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[codeclimate]

Code Climate has analyzed commit fecaac2 and detected 0 issues on this pull request.

View more on Code Climate.

[codecov]

Codecov Report

Merging #8522 into main will decrease coverage by 0.11%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #8522      +/-   ##
==========================================
- Coverage   81.91%   81.79%   -0.12%     
==========================================
  Files         101      101              
  Lines        5894     5894              
==========================================
- Hits         4828     4821       -7     
- Misses       1066     1073       +7     

Impacted Files	Coverage Δ
app/services/execute_search.rb	88.88% <0.00%> (-5.56%)	⬇️
app/api/srch/search.rb	66.87% <0.00%> (-3.83%)	⬇️

[avats-dev]

@xaylax nice work. Thanks for contributing to publiclab 🎉 .

@cesswairimu for further actions 😄 .

[Cadreia]

@xaylax Looks good. Well done.

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[jywarren]

Great work! Fantastic -- thanks so much!

[xaylax]

No problem! Thanks so much for helping out first-timers like myself get involved with open-source! ☺