docs: editing and general fixes of medusa's learning resources (#7261)

* docs: editing and general fixes of medusa's learning resources

* fix build script

* update ui dependency

* fix build

* adjust next.js steps

www/apps/resources/app/commerce-modules/payment/payment-provider/stripe/page.mdx

@@ -65,6 +65,14 @@ const modules = {
 }
 ```
 
+### Environment Variables
+
+Make sure to add the necessary environment variables for the above options in `.env`:
+
+```bash
+STRIPE_USD_API_KEY=<YOUR_STRIPE_API_KEY>
+```
+
 ### Module Options
 
 <Table>
@@ -173,14 +181,6 @@ const modules = {
   </Table.Body>
 </Table>
 
-### Environment Variables
-
-Make sure to add the necessary environment variables for the above options in `.env`:
-
-```bash
-STRIPE_USD_API_KEY=<YOUR_STRIPE_API_KEY>
-```
-
 ---
 
 ## Use Provider