Improve list of repositories during "Import from GitHub"
During import all the repositiories are mixed: private, public, those which shared with me, forks. Moreover there is no indication of types of repos. For experienced users of GitHub, the list gets really long, and it takes time to find It is natural to expect that people want to import their private repos first, then maybe public, then those which are shared with them. Forks should be also in this list, but I believe it is rare case.
Minimal possible change will be to add type of repo indication and sort the list by this type(order as proposed above: user's private repos, user's public repos, repos shared with user, forks)
GitHub has this switcher to make navigation through repos easier:
cc @JobV