Expose il8n for POS ui extensions

Author: vctrchu

packages/ui-extensions/src/surfaces/point-of-sale/api/standard/standard-api.ts

@@ -7,9 +7,11 @@ import {ProductSearchApi} from '../product-search-api/product-search-api';
 import {PrintApi} from '../print-api/print-api';
 import {StorageApi} from '../storage-api/storage-api';
 import {PinPadApi} from '../pin-pad-api';
+import type {I18n} from '../../../../api';
 
 export type StandardApi<T> = {[key: string]: any} & {
   extensionPoint: T;
+  i18n: I18n;
 } & LocaleApi &
   ToastApi &
   SessionApi &