One-line: welds sibling controls into one unit — use for split buttons, prefixed inputs and paired actions.

```jsx
<ButtonGroup>
  <ButtonGroupText>https://</ButtonGroupText>
  <Input placeholder="cal.com/rick" />
  <Button variant="outline">Copy</Button>
</ButtonGroup>
```

The group removes the inner border and radius of every child; do not add your own \`rounded-none\`.
