chore: worker cleanup

workers/dynamic-pages/utils/countries.js

@@ -0,0 +1,10 @@
+const regionNames = new Intl.DisplayNames(['en'], { type: 'region' })
+const getCountryName = (countryCode) => regionNames.of(countryCode.trim()) || countryCode.trim()
+
+export const parseCountryField = (countryField) => {
+  if (!countryField) return null
+  const delimiters = [',', '/', '&', 'and']
+  let countries = [countryField]
+  delimiters.forEach(delimiter => countries = countries.flatMap(country => country.split(delimiter)))
+  return countries.map(getCountryName).join(', ')
+}