swayidle: terminate when server died
swayidle: terminate when server died

Fixes #1977.

taiyu-len/sway,taiyu-len/sway,1ace/sway,ascent12/sway,ascent12/sway,taiyu-len/sway,SirCmpwn/sway,ascent12/sway,1ace/sway,1ace/sway