chore: add missing cards from platform landing pages (#22366)

## Description
- a few cards were missing from platform landing pages (OATs being one)

## Related issues or tickets
- [ENGDOCS-2518](https://docker.atlassian.net/browse/ENGDOCS-2518)

## Reviews
- [ ] Editorial review

[ENGDOCS-2518]:
https://docker.atlassian.net/browse/ENGDOCS-2518?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

content/manuals/billing/_index.md

@@ -12,7 +12,7 @@ grid_core:
   description: Learn how to add or update a payment method for your personal account or organization.
   link: /billing/payment-method/
   icon: credit_score
-- title: Update the billing information
+- title: Update billing information
   description: Discover how to update the billing information for your personal account or organization.
   link: /billing/details/
   icon: contract_edit

content/manuals/security/_index.md

@@ -55,6 +55,14 @@ grid_admins:
   description: Learn how to configure and set up a private marketplace with a curated list of extensions for your Docker Desktop users.
   icon: storefront
   link: /desktop/extensions/private-marketplace/
+- title: Organization access tokens
+  description: Create organization access tokens as an alternative to a password.
+  link: /security/for-admins/access-tokens/
+  icon: password
+- title: Enforce sign-in
+  description: Enforce your users to sign in to Docker Desktop.
+  link: /security/for-admins/enforce-sign-in/
+  icon: login
 grid_developers:
 - title: Set up two-factor authentication
   description: Add an extra layer of authentication to your Docker account.