Y25-598 - scRNA - add tube size options

[andrewsparkes]

Closes #5389

Changes proposed in this pull request

• change to viability threshold value

[codecov]

Codecov Report

❌ Patch coverage is 28.57143% with 15 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.53%. Comparing base (69b9ec5) to head (c7e11b8).

Files with missing lines	Patch %	Lines
...models/presenters/donor_pooling_plate_presenter.rb	28.57%	15 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2645      +/-   ##
===========================================
- Coverage    84.59%   84.53%   -0.06%     
===========================================
  Files          501      501              
  Lines        20538    20559      +21     
  Branches       377      377              
===========================================
+ Hits         17374    17380       +6     
- Misses        3161     3176      +15     
  Partials         3        3              

Flag	Coverage Δ
javascript	79.71% <ø> (ø)
pull_request	84.53% <28.57%> (-0.06%)	⬇️
push	84.53% <28.57%> (-0.06%)	⬇️
ruby	92.39% <28.57%> (-0.18%)	⬇️

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[StephenHulme]

Looks good 👍
I'm still not a fan of the numbers and point punctuation in the purpose names, but realise that it might not be a simple change.