Improve some Array.from() usage

[Snuffleupagus]

Rather than doing Array.from(...).map(mapFn) we can use the more efficient Array.from(..., mapFn) format instead since that avoids creating an intermediate Array; see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from#description

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.09%. Comparing base (c2bbde1) to head (1c6cead).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #21742   +/-   ##
=======================================
  Coverage   90.09%   90.09%           
=======================================
  Files         264      264           
  Lines       67194    67234   +40     
=======================================
+ Hits        60538    60577   +39     
- Misses       6656     6657    +1     

Flag	Coverage Δ
browsertest	66.35% <ø> (-0.04%)	⬇️
integrationtest	69.30% <ø> (+0.01%)	⬆️
unittest	58.22% <ø> (-0.04%)	⬇️
unittestcli	56.58% <ø> (-0.06%)	⬇️

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[timvandermeij]

Thanks!