[BUG] Modal confirmation alert shows double in routed modals

[X] I have written a good issue

Describe the bug

When setting canDismiss with an AlertConfig in a routed modal, you get a confirmation alert when trying to close the modal. If you confirm closing in the alert, the modal closes and immediately you get the confirmation alert again. The issue does not happen when the modal was opened using ModalController.

Describe how to reproduce the bug

Please complete the following information:

OS: [e.g. Windows, MacOS, iOS]
Browser [e.g. Chrome, Safari]
Browser version [e.g. 22]

Are there any additional context?

Before the modal was closed:

After the modal was closed:

Checklist:

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Verification

To make sure the bug is not intended behaviour; it should be verified by a member of team Kirby before moving on to implementation.

[ ] Make sure the NOT verified label has been removed by a member of team Kirby; do not proceed until this is done.

Implementation

The contributor who wants to implement this issue should:

[ ] Make sure you have read: "Before you get coding".
[ ] Signal to others you are working on the issue by assigning yourself.
[ ] Create a branch from the develop branch following our branch naming convention.
[ ] Create a test that reproduces the bug following guidelines in: "The good: Test".
[ ] Write code to fix the bug

Review

Once the issue has been implemented and is ready for review:

[ ] Do a self-review.
[ ] Create a pull-request.

kirbydesign / designsystem