fix: repair main after the MYR, MKD and COP merges

[BastiOfBerlin]

fix: repair main after the MYR, MKD and COP merges

main is currently red. #486 (MYR), #507 (MKD) and #521 (COP) were each green on their own base, but none of them was rebased onto the branch that added the Arabic locale (#540). All three hand-edited src/lib/currency-data.json for the 23 locales their branch knew about, so after the merges ar has 31 currencies while every other locale has 34.

getCurrency() indexes the union of all locale objects with the union of all supported codes, so the missing keys break type checking:

$ npm run check-types
src/lib/currency.ts(90,5): error TS7053: Element implicitly has an 'any' type because
expression of type '"USD" | "EUR" | ... | "COP"' can't be used to index type '{ ... }'.
  Property 'MKD' does not exist on type '{ USD: {...}; EUR: {...}; ... }'.

npm run check-formatting fails too, on three files:

[warn] src/lib/currency-data.json
[warn] src/lib/currency.ts
[warn] src/scripts/generateCurrencyData.ts

What this PR changes

1. Regenerate src/lib/currency-data.json with the existing npm run generate-currency-data, so every locale carries every supported code. Verified: 24 locales × 34 currencies, no gaps.

The only entries that differ from the current main:

Change	Entries
added MKD, MYR, COP to the ar locale	3 — this is the actual build fix
changed MKD in the other 23 locales	symbol_native ден → MKD, symbol den → MKD, and name/name_plural to the currency-list wording

Worth flagging explicitly: #507 hand-wrote those MKD values rather than taking them from currency-list, so regenerating replaces them. That brings MKD in line with how every other currency in the file is produced — after this PR the file is exactly what the generator emits. If you'd rather keep ден as the native symbol, it should go through the generator (e.g. a small override map) so the file stays reproducible; happy to add that here if you prefer.

2. src/scripts/generateCurrencyData.ts — write a trailing newline. Without it, a freshly generated data file always fails prettier -c src; that missing newline was Prettier's only complaint about the JSON. The writeFileSync call is also wrapped, since #521 left it at 86 characters.

3. src/lib/currency.ts — restore the indentation of the customChoice ternary in defaultCurrencyList. #521 re-indented that block by two spaces as collateral damage; the contents are unchanged, so this is formatting only.

supportedCurrencyCodes is untouched — MYR, MKD and COP all stay.

Verification

Full CI sequence from .github/workflows/ci.yml, on Node 24:

npm ci --ignore-scripts
npx prisma generate
npm run check-types        # silent
npm run lint               # 16 problems (0 errors, 16 warnings) — unchanged from before
npm run check-formatting   # All matched files use Prettier code style!
npx jest                   # 27 tests passed

Re-running npm run generate-currency-data after the commit leaves a clean working tree, which confirms the checked-in JSON is exactly the generator's output and that the trailing-newline fix holds.

Suggestion

Enabling Require branches to be up to date before merging on main would make this class of merge skew fail on the PR rather than on main — all three PRs here passed individually and only conflicted semantically once combined.