Bugfix/recursivetreeview issue after changing nodes

[KaiStarkk]

Draft

Description

This adds tests for a bug identified in #2875 . This adds 4 new tests for RecursiveTreeView which isolates the issue to one specific test, the other 3 pass.

I've submitted this PR as draft since the tests are useful, but this isn't yet a fix. Will work on it shortly.

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
  ^ This caused an unrelated edit which has been added as a separate commit
• All test cases are passing - run pnpm test
  ^ There were already failing tests on dev
• Includes a changeset (if relevant; see above)

[changeset-bot]

🦋 Changeset detected

Latest commit: 4fff284

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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[KaiStarkk]

Just a note regarding the package upgrades, only the upgrades to testing packages were strictly necessary (vite-plugin-svelte and jest-dom) to get tests working properly, but I've aimed to resolve all updates to this point in time.

[endigo9740]

Than you @KaiStarkk, please make sure to mark the PR "ready for review" when it reaches that state. We'll review and aim to provide feedback and/or merge asap.