fixed layout margins
removed brows button for the "from" field

Cloning a local repository is not usual. It only makes sense when doing a bare clone. But even then you'll be always better off by creating the bare repository on the remote end, then add a remote locally and push afterwards.

It's still possible to do though. You just have to type in the full local path.
cleanup UI
the "close" button should actually close the dialog instead of rejecting it.