Checkbox id should not be mandatory

[jsebrech]

Describe the bug

The Checkbox component requires the use of an id, while in the type definition this is optional. The id should be made optional.

To Reproduce

Steps to reproduce the behavior:

1. Go to https://digipolisantwerp.github.io/antwerp-ui_react/#form and scroll down to Checkbox
2. Click View Code
3. Remove the id attribute from the code
4. Try clicking the checkbox, it cannot be clicked anymore

Expected behavior

Checkbox should work without the id attribute.

Additional context

This issue was reported for "Regie Kinderopvang" by Aptus.