Billing flow redirect (#713)

* Billing flow redirect

* fix checkout url

* Refactor checkout and subscription flow

- Improve checkout URL generation with ref unwrapping
- Enhance user data handling in subscription modal
- Remove deprecated CheckoutDetailsModal component
- Update form field and register form styling
- Add more robust user data update mechanism

* Refactor checkout and subscription flow

- Improve checkout URL generation with ref unwrapping
- Enhance user data handling in subscription modal
- Remove deprecated CheckoutDetailsModal component
- Update form field and register form styling
- Add more robust user data update mechanism

* Fix accessibility and checkout URL generation

- Add proper label for terms and conditions checkbox in RegisterForm
- Refactor checkout URL generation in SubscriptionModal using computed refs
- Improve form input handling and reactivity

---------

Co-authored-by: Julien Nahum <julien@nahum.net>

client/components/open/forms/fields/FormFieldEdit.vue

@@ -24,7 +24,10 @@
               :type="field.type"
             />
 
-            <p class="text-sm text-gray-500" v-if="blocksTypes[field.type]">
+            <p
+              v-if="blocksTypes[field.type]"
+              class="text-sm text-gray-500"
+            >
               {{ blocksTypes[field.type].title }}
             </p>