Mark KTorrent as a single main window program
As it happens with other programs (https://github.com/nextcloud/desktop/pull/4194 , pim/knotes@70e81d72 , https://github.com/qbittorrent/qBittorrent/pull/15996 , https://nicolasfella.de/posts/taskbar-single-app , https://gitlab.freedesktop.org/xdg/xdg-specs/-/merge_requests/53): There can only be one instance of the program running. Mark it as such in the .desktop file. This allows desktop environments to adjust their UI accordingly.
Does the value should be a lowercase "
true"? I try to package the latest unstable ktorrent based on this commit, but there is a desktop-file-validate error from the check stage:
$ desktop-file-validate org.kde.ktorrent.desktop org.kde.ktorrent.desktop: error: value "True" for boolean key "SingleMainWindow" in group "Desktop Entry" contains invalid characters, boolean values must be "false" or "true"