[BUG] When adding a new customer and setting up a Stripe connection, the site should poll for new potential Stripe connections whenever the user interacts with the dropdown

[doctorpangloss]

Describe the bug
Adding a stripe connection in another page should make it appear in the dropdown.

In general, the forms should do a better job retaining information as you interact with the site.

To Reproduce

1. Visit the /customers route
2. Add a customer
3. Navigate down to Payment provider information.
4. Click default payment provider: stripe
5. Observe no connected accounts.
6. Open a new tab, configure a Stripe account.
7. Observe that the connected accounts dropdown is not updated. It should be.

Expected behavior
Update the dropdown as soon as a connected account is added or the user interacts with the dropdown.

Environment infos

Environment informations

App environment : production
API URL : xxx
Version : 1.0.0 (really 1.2.1)
User Id : 52e9cbc7-69dd-4f26-b44c-38df742498d5

[ansmonjol]

This part of the app will very soon be refactored.

I'll have this case in mind during implementation.

Thanks for reporting

[ansmonjol]

This will be fixed by #1463

Payment integration will be fetched each time you open the accordion - the one dedicated to selecting the Stripe (or other PP) linked account.