Bug: animation triggers every time the loading progress changes

[artsmvch]

Animation triggers every time the loading progress changes. Which leads to situations like in the attached video:

https://github.com/Kamel-Media/Kamel/assets/61359788/4a5373e5-3e08-40aa-bd6d-a8ae247732a8

Instead, the transition animation should only trigger when the resource type changes: from loading to success or from loading to failure.