docs: fix code block titles (#5733)

* docs: fix code block titles

* remove console

* fix build error

www/apps/docs/content/modules/customers/backend/send-confirmation.md

@@ -39,7 +39,7 @@ To subscribe to an event, you must create a [subscriber](../../../development/ev
 
 Create the file `src/subscribers/customer-confirmation.ts` with the following content:
 
-```ts title=src/subscribers/customer-confirmation.ts
+```ts title="src/subscribers/customer-confirmation.ts"
 import { 
   type SubscriberConfig, 
   type SubscriberArgs,
@@ -70,7 +70,7 @@ In this method, you should typically send an email to the customer. You can plac
 
 For example, you can implement this subscriber to send emails using [SendGrid](../../../plugins/notifications/sendgrid.mdx):
 
-```ts title=src/subscribers/customer-confirmation.ts
+```ts title="src/subscribers/customer-confirmation.ts"
 import { 
   type SubscriberConfig, 
   type SubscriberArgs,
@@ -117,7 +117,7 @@ If the notification provider you’re using already implements the logic to hand
 
 For example:
 
-```ts title=src/loaders/customer-confirmation.ts
+```ts title="src/loaders/customer-confirmation.ts"
 import { 
   MedusaContainer, 
   NotificationService,