copy updates

Co-authored-by: Tim Anema <tim.anema@shopify.com>

packages/koa-shopify-auth/src/auth/create-request-storage-access.ts

@@ -8,9 +8,9 @@ import requestStorageAccess from './client/request-storage-access';
 import storageAccessHelper from './client/storage-access-helper';
 import Error from './errors';
 
-const HEADING = 'Your browser needs to authenticate this app';
+const HEADING = 'This app needs access to your browser data';
 const BODY =
-  'Your browser requires apps to ask you for access to cookies before Shopify can open it for you.';
+  'Your browser is blocking this app from accessing your data. To continue using this app, click Continue, then click Allow if the browser prompts you.';
 const ACTION = 'Continue';
 
 export default function createRequestStorageAccess({