feat: update Coupons, Access, Licenses pages (F2.20-F2.22)

- Add placeholder content for Coupons page
- Add placeholder content for Access Items page
- Add placeholder content for Licenses page
- Users can use classic editor until React versions are ready

src/admin/pages/Access.js

@@ -6,9 +6,9 @@ import { __ } from '@wordpress/i18n';
 
 export default function AccessPage({ initialData }) {
     return (
-        <div className="formipay-page-formipay-page">
+        <div className="formipay-page-access">
-            <h1>{ __('Access', 'formipay') }</h1>
+            <h1>{ __('Access Items', 'formipay') }</h1>
-            <p>{ __('Page content coming soon...', 'formipay') }</p>
+            <p>{ __('Access items management coming soon. Use the classic editor for now.', 'formipay') }</p>
         </div>
     );
 }

src/admin/pages/Coupons.js

@@ -6,9 +6,9 @@ import { __ } from '@wordpress/i18n';
 
 export default function CouponsPage({ initialData }) {
     return (
-        <div className="formipay-page-formipay-page">
+        <div className="formipay-page-coupons">
             <h1>{ __('Coupons', 'formipay') }</h1>
-            <p>{ __('Page content coming soon...', 'formipay') }</p>
+            <p>{ __('Coupon management coming soon. Use the classic editor for now.', 'formipay') }</p>
         </div>
     );
 }

src/admin/pages/Licenses.js

@@ -6,9 +6,9 @@ import { __ } from '@wordpress/i18n';
 
 export default function LicensesPage({ initialData }) {
     return (
-        <div className="formipay-page-formipay-page">
+        <div className="formipay-page-licenses">
             <h1>{ __('Licenses', 'formipay') }</h1>
-            <p>{ __('Page content coming soon...', 'formipay') }</p>
+            <p>{ __('License management coming soon. Use the classic editor for now.', 'formipay') }</p>
         </div>
     );
 }