Private Repo Creation (Repo Creation Options)

When creating a repo, you should be able to configure certain aspects (like it being private) from within the creation modal.

Thoughts @zachschultz ?

Start by locating the repository-creation modal and the entry point that submits new GitHub repositories. Check how creation options are currently represented, then define completion as allowing the private setting to be selected in the modal and ensuring that choice is sent during creation. No specific files or tests are named in the issue.

Written by the indexing model from the issue text.