Checkbox doesn't include hidden input

[gtm-nayan]

Describe the bug

The checkbox component only shows the indicator button and doesn't render the hidden input which means the checkbox doesn't show up in form submissions unless you manually bind the value and render it in another hidden checkbox

Reproduction

https://stackblitz.com/edit/github-ofar7n?file=src%2Froutes%2F%2Bpage.svelte,src%2Froutes%2F%2Bpage.server.ts

Logs

No response

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm
  npmPackages:
    @sveltejs/kit: ^2.0.0 => 2.5.2 
    bits-ui: ^0.18.2 => 0.18.2 
    cmdk-sv: ^0.0.13 => 0.0.13 
    formsnap: ^0.5.0 => 0.5.0 
    lucide-svelte: ^0.303.0 => 0.303.0 
    mode-watcher: ^0.2.1 => 0.2.1 
    svelte: ^4.2.9 => 4.2.9 
    svelte-sonner: ^0.3.18 => 0.3.18 
    sveltekit-superforms: ^2.5.0 => 2.5.0 
    vaul-svelte: ^0.2.4 => 0.2.4

Severity

annoyance

[dyc3]

I'd like to contribute a fix for this. Should I make a PR for this repo or bits-ui?

[huntabyte]

Fixed in @next