[STYLE] Expander animations

[mou-haz]

Resolves #302
Resolves #319

Updated animations for exander card style.
Update animations for SettingsExpander Expander.

[NotYoojun]

Is it really a good idea to hardcide these values? Well at least I dont think so.

[mou-haz]

@NotYoojun , i think it now doesn't depend on hardcoded values.

[NotYoojun]

TL;DR: Changes requested before we can merge

Thanks for your contribution! 🙌🏻

We've reviewed your pull request and it's a great step forward.
Before we can merge it, there are just a few things that would make it even better:

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Corner Radius in Expanded State

The corner radius styling appears incorrect when the expander is expanded. I've attached images to illustrate the issue. Please review the visual styling and ensure consistency across states.

❌ Wrong (current)

✅ Correct

ExpanderDirection Compatibility

The current implementation only works correctly when ExpanderDirection == Down. If the direction is set to Left, Right, or Up, the layout breaks or behaves unexpectedly. Could you please update the logic to support all ExpanderDirection values?

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When you have a chance, please update the PR with these refinements.
If anything is unclear or you'd like guidance, we're more than happy to help - just let us know.

If you don't have the time or energy to make these changes yourself, that's completely okay.
But please always say so openly, let us know, and our team or other contributors can step in to help finish it up if anyone is available.

[mou-haz]

@NotYoojun Thanks for the review.
The suggested changes have been implemented. can u take a look now?