fix(button): error occurs with in Button click handler cannot be caught

[zvn2060]

🔗 Linked issue

Resolves #3237

❓ Type of change

• 📖 Documentation (updates to the documentation or readme)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

• Fixed an issue where errors thrown inside the Button click handler cannot be caught by Vue’s onErrorCaptured hook.
• Ensured the handler now re-throws within Vue’s async boundary so global error capturing and fallback UI continue to work as expected.
• Added testcase to prevent future silent failures.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[pkg-pr-new]

npm i https://pkg.pr.new/@nuxt/ui@5834

commit: e3153c9