Bugfix/toast transition error when triggered/closing at the same tick

[VitAndrGuid]

Linked Issue

Closes #2407

Description

Whenever transitions are enabled and a second toast is triggered immediately after the first one is closed, the toast wrapper is removed from the DOM and the second toast is not displayed.

This happens because the wrapper depends on a IF block thats only true when theres a toast on the queue, but when a first toast A is removed and a second one B is immediately added it seems the update of the removal of the toast wrapper, scheduled by the removal of A is executed after A outro animation ends, in this case B will be shown for a mere moment and then the wrapper is removed, but it should be visible since B is on the queue.

Changsets

Instructions: Changesets automate our changelog. If you modify files in /packages, run pnpm changeset in the root of the monorepo, follow the prompts, then commit the markdown file. Changes that add features should be minor while chores and bugfixes should be patch. Please prefix the changeset message with feat:, bugfix: or chore:.

Checklist

Please read and apply all contribution requirements.

• This PR targets the dev branch (NEVER master)
• Documentation reflects all relevant changes
• Branch is prefixed with: docs/, feat/, chore/, bugfix/
• Ensure Svelte and Typescript linting is current - run pnpm ci:check
• Ensure Prettier linting is current - run pnpm format
• All test cases are passing - run pnpm test
• Includes a changeset (if relevant; see above)

[changeset-bot]

🦋 Changeset detected

Latest commit: 2588708

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@skeletonlabs/skeleton	Patch

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[endigo9740]

@VitAndrGuid I've restored the missing portion of the PR template concerning changesets and the checklist. If you could please run down the checklist and verify all conditions are met please.

Note I handle PR reviews periodically, so it may be a couple days before I get to this. But I will review asap.

[VitAndrGuid]

@endigo9740
Done

[endigo9740]

@VitAndrGuid the PR was still in a "draft" state, so I wasn't sure if were quite done and ready for review. But assuming so, I've completed an audit and everything looks to meet my expectations. I especially appreciate you adding the test case!

If you would please confirm everything is ready on your end, I'll go ahead and accept and merge this. If we can get this in over the next few day it can go out as part of the new release on Tuesday next week.

Thanks!

[VitAndrGuid]

@endigo9740
Things are ok on my end, i think this can be merged if possible.