fix: update error message to clarify usage with radio inputs

[yuki0418]

closes #16870

Description

Change error message for radio input checked binding.

Before:

"message": "`bind:checked` can only be used with <input type=\"checkbox\">"

After:

"message": "`bind:checked` can only be used with <input type=\"checkbox\"> - for <input type=\"radio\">, use 'group' binding"

Docs screenshot

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[changeset-bot]

🦋 Changeset detected

Latest commit: 926f9a5

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

This PR includes changesets to release 1 package

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svelte	Patch

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[svelte-docs-bot]

Preview: https://svelte-dev-git-preview-svelte-16874-svelte.vercel.app/

[yuki0418]

Please let me know if there are better message.

[PatrickG]

Suggested change

	Checkbox can be bound with `bind:checked`:
	Checkbox inputs can be bound with `bind:checked`:

[yuki0418]

Modified.

[PatrickG]

In svelte 4 the last part was only in the error message if you tried to use it with type="radio".
Not sure if we want to keep it like that.

Suggested change

	`<input type="checkbox"> - for <input type="radio">, use 'group' binding`
	`<input type="checkbox">${type.value[0].data === 'radio' ? ` — for <input type="radio">, use 'group' binding` : ''}`

[yuki0418]

Modified.

I have a same experience of using bind:checked with radio input.
At that time, I went to the official doc and realized we should use group bind.

From that my experience, keeping extra message is friendly for developers but it is not necessary.

[github-actions]

Playground

pnpm add https://pkg.pr.new/svelte@16874

[Rich-Harris]

thank you!