fix: remove from toggled property of Switch component in UNDP Design System because of some issue of reactivity in svelte 5. Use onchange event instead.

[JinIgarashi]

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Description

fixes #4924

I found Switch control had some issues when bind toggled property in svelte 5. I removed $bindable for toggled prop, and use onchange event instead.

Type of Pull Request

• Adding a feature
• Fixing a bug
• Maintaining documents
• Adding tests
• Others ()

Verify the followings

• Code is up-to-date with the develop branch
• No build errors after pnpm build
• No lint errors after pnpm lint
• Run the tests with pnpm test and lint the project with pnpm lint and pnpm check
• Make sure all the existing features working well

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[changeset-bot]

🦋 Changeset detected

Latest commit: 38f361b

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

This PR includes changesets to release 5 packages

Name	Type
@undp-data/svelte-geohub-static-image-controls	Patch
@undp-data/svelte-undp-components	Patch
@undp-data/svelte-undp-design	Patch
geohub	Patch
@undp-data/svelte-maplibre-storymap	Patch

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