Disable for Plasma Mobile and other shells
Currently, Welcome Center is not well adapted to other Plasma shells, but will autorun as the KDED module doesn't care or know about the running shell. We should only autostart it for Plasma Desktop.
Additionally, Welcome Center is not aware of different shells and will track whether it has run before and the version (for the update page) for all of them together, which is not ideal. This ties in with #13. The update page will only show Plasma Desktop!
Is there a way we can ascertain the running shell, (Desktop, Mobile, Bigscreen, Nano)?