In stand-alone window, add "Uninstall" button when applicable
|Reported by:||humdinger||Owned by:||leavengood|
This is hrev52739.
When you double-click a HPKG, it's opened in a stand-alone HaikuDepot window. Here, you'll always get an "Install" button, even if the package is already installed. In that case, it should show an "Uninstall" button instead.