Alignment: Checkbox

Button should contain the following properties from the Design System:

label - ReactNode
description - `ReactNode`
disabled - boolean
readOnly - boolean
value (value of the input element) - `string | number | readonly string[]`
size - `sm`, `md`, `lg`
color - `accent`, `brand1`, `brand2`, `brand3`. `neutral`
aria-label - `string`
error - `ReactNode``
arialabelledby - `string`

Design system documentation [can be found here](https://storybook.designsystemet.no/?path=/docs/komponenter-checkbox--docs)

Start at the Checkbox component entry point and compare its current public props with the properties listed in the issue and the linked Design System documentation. Done means the Checkbox supports the specified properties and their stated types and values, with the expected behavior confirmed by the relevant existing checks or tests.

Written by the indexing model from the issue text.