fix comorbidities; adjust SK fetching

[lukaskollmer]

fix comorbidities; adjust SK fetching

⚙️ Release Notes

• adds a primary comorbidity option
• removes leftover debug UI from the comorbidity start time picker
• reduces the SensorKit concurrency level from 6 parallel sensors to 4

✅ Testing

n/a

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.97%. Comparing base (75dba30) to head (6669636).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #116   +/-   ##
=======================================
  Coverage   68.97%   68.97%           
=======================================
  Files         187      187           
  Lines        2507     2507           
=======================================
  Hits         1729     1729           
  Misses        778      778           

Files with missing lines	Coverage Δ
MyHeartCounts/Account/AccountSheet.swift	76.00% <ø> (ø)
...artCounts/Account/Demographics/Comorbidities.swift	75.00% <ø> (ø)
...nts/Account/Demographics/ComorbiditiesPicker.swift	80.96% <ø> (ø)
... Import/HistoricalHealthSamplesExportManager.swift	55.56% <ø> (ø)

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[PSchmiedmayer]

Looks great; thank you @lukaskollmer 🚀

[PaulGoldschmidt]

Thanks @lukaskollmer! Happy to see this merged; would then include the changes in the respective firebase PR.