Sometimes you would like to only be notified that something has happened but not have the actual notification contents forwarded to the desktop.

On the Android side, the notifications plugin should have an options popup for each app with two checkboxes, one to block forwarding notification contents and one to block notification images. If an option is selected, the packet sent should not include that field.

On the Desktop side, the notification plugin should be able to handle a packet which has had information fields removed and display nothing or perhaps placeholder text.

This handles https://bugs.kde.org/show_bug.cgi?id=397798