942758bb30
`AppIcon.shellWorkspaceLaunch()` can easily be replaced by checking for `AppIcon.app` and calling `AppIcon.app.open_new_window()` directly. For compatibility and to prevent breaking extensions implementing the function, keep supporting the `shellWorkspaceLaunch` API in AppIcon while logging a deprecation warning. Also keep supporting the API on drag sources (without deprecating it) to allow extensions to define custom actions on their drag sources. https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/121