Add position support to Box

[jamime]

Desired behaviour

Add support for all positioning props. e.g.

<Box position="fixed"/>

Current behaviour

Unable to position a box fixed position.

Suggested Solution

https://styled-system.com/api/#position

CodeSandbox or Storybook URL

https://codesandbox.io/s/admiring-cookies-yhcu3s

Anything else we should know?

Discussed with carbon team. Agreed to implement.

Confidentiality

• [X] I confirm there is no confidential or commercially sensitive information included.

[nicktitchmarsh]

FE-5285

[carbonci]

:tada: This issue has been resolved in version 110.2.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: