🌱 Setup TS to know about .filter(Boolean)

[sjd78]

With array-filter-Boolean.ts, TS will select a better Array.filter() override so this kind of thing will work automatically without an explicit type casting:

const a: Array<string | undefined | null> = ["A", "B", undefined, null, "C", ""];

const b: string[] = a.filter(Boolean);
// b = ["A", "B", "C"]

See https://www.karltarvas.com/typescript-array-filter-boolean.html
See https://stackoverflow.com/a/51390763/1470607

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (3b7f853) 41.24% compared to head (c667c9b) 41.24%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1416   +/-   ##
=======================================
  Coverage   41.24%   41.24%           
=======================================
  Files         138      138           
  Lines        4347     4347           
  Branches     1005     1005           
=======================================
  Hits         1793     1793           
  Misses       2542     2542           
  Partials       12       12           

Flag	Coverage Δ
client	41.24% <33.33%> (ø)
server	∅ <ø> (∅)

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Files	Coverage Δ
...s/components/application-form/application-form.tsx	65.94% <100.00%> (ø)
client/src/app/utils/model-utils.tsx	35.06% <0.00%> (ø)

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[ibolton336]

Nice find!