Similarly to the installation procedure, when an uninstall is
requested, an `UninstallOptionsModel` is emitted by the `RareGame`.
`DownloadsTab` handles the signal and spawns the `UninstallDialog`.
After the `UninstallDialog` is closed, a worker thread handles
uninstalling the application to avoid UI lock-ups when a large
number of files is deleted.
Allows for uninstall actions to be spawned from anything having
access to the `RareGame` instance.
LaunchDialog: Don't check health on DLCs, they always will require
verification if they don't specify an executable.
Signed-off-by: loathingKernel <142770+loathingKernel@users.noreply.github.com>
