The Clone Repository dialog lists GitHub next to Repository URL: the repositories of the account gh is signed in to, searchable; picking one fills URL and directory, double-click or Enter clones. Clone URL follows gh's git_protocol. Clone sources are a workbench contribution (registerCloneSource); gh_account_repos needs no project.
Closes#750
Clone Repository gets IntelliJ's layout: a source list on the left, a version-control selector, URL history, a directory picker, and a shallow-clone option (history truncated to N commits, git clone --depth N). Entries for hosting platforms without backend support were removed.
Co-authored-by: whyareyouserious <[email protected]>