Project Setup: Styling of "This project doesn't have a code repo" is inconsistent from other sections

[shaunop]

Describe the bug
In the Project Setup, the styling of "This project doesn't have a code repo" is inconsistent from other sections. It should be styled like the same container found on Contracts step.

Screenshot of the incorrect styling:

Screenshot of correct styling:

[linear]

AGORA-3130 Project Setup: Styling of "This project doesn't have a code repo" is inconsistent from other sections