Feature suggestion: skip notification when in fullscreen mode

[l0f4r0]

Currently there are 3 options for fullscreen: show, delay and pushback.
It would be nice to have 1 more: skip.

If the notification is already shown => undraw it when going into fullscreen.
If the notification comes when in fullscreen => don't draw it (and never after even if not in fullscreen anymore)

Thanks in advance :)