I would like to move a file or folder from one place to another within the same repository without having to use Repo Browser to do it, and without creating two independent
If you want to move files around and keep the csproj files up to date, the easiest way is to use a Visual Studio plugin like AnkhSVN.
That will automatically commit both the move action (as an delete + add with history, because that's how Subversion works) and a change in the .csproj