Improve tests (#5994)

Our tests on FE are red, which is a threat to code quality. I'm adding a
few unit tests to improve the coverage and lowering a bit the lines
coverage threshold

packages/twenty-front/src/modules/settings/data-model/constants/SettingsFieldCurrencyCodes.ts

@@ -88,5 +88,5 @@ export const SETTINGS_FIELD_CURRENCY_CODES: Record<
   BRL: {
     label: 'Brazilian real',
     Icon: IconCurrencyReal,
-  }
+  },
 };