fix(checkbox): prevent unwanted vertical scroll from CheckboxBubbleInput positioning

[AdeilsonESilva]

Fixes unwanted vertical scroll caused by CheckboxBubbleInput positioning in @radix-ui/react-checkbox.

The absolutely positioned bubble input was missing explicit top: 0 and left: 0 CSS properties, causing it to extend beyond the trigger button boundaries in certain layouts and trigger unwanted page scroll.

Problem

Without top: 0, left: 0, the input's default positioning + transform: translateX(-100%) could push it outside the button container vertically, creating vertical overflow and scrollbars.

Solution

Added explicit positioning to ensure the input stays perfectly aligned within the trigger button bounds:

style={{
    ...props.style,
    ...controlSize,
    position: 'absolute',
    top: 0,
    left: 0,
    pointerEvents: 'none',
    opacity: 0,
    margin: 0,
    transform: 'translateX(-100%)',
}}

Changes

• Added top: 0, left: 0 to CheckboxBubbleInput inline styles
• No API changes, no breaking changes
• Maintains existing transform behavior for form event bubbling

Testing

• Verified checkbox behavior in Storybook (pnpm dev)

• Ran package tests (pnpm test)

• Confirmed accessibility (keyboard navigation, screen reader states) unchanged

• 📝 Use a meaningful title for the pull request and include the name of the package modified.

• ✅ Add or edit tests to reflect the change (run pnpm test).

• 🔍 Add or edit Storybook examples to reflect the change (run pnpm dev).

• 🙏 Please review your own PR to check for anything you may have missed.

Demo

Before (vertical scroll on narrow/tall containers):

After (no scroll, perfect alignment):

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Latest commit: a5c6aa1

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