Force new process group using setgid -f when starting anything that may possibly kill an entire progress group (kill -9 0) #117

This fixes https://todo.sr.ht/~mil/sxmo-tickets/117 and the crashes when
toggling the modem monitor.

Signed-off-by: Anjandev Momi <anjan@momi.ca>

scripts/core/sxmo_gesturehandler.sh

@@ -76,10 +76,10 @@ if [ "$HANDLE" -ne 0 ]; then
 			pkill -9 "$KEYBOARD"
 			;;
 		"showmenu")
-			pidof dmenu || sxmo_appmenu.sh &
+			pidof dmenu || setsid -f sxmo_appmenu.sh &
 			;;
 		"showsysmenu")
-			pidof dmenu || sxmo_appmenu.sh sys &
+			pidof dmenu || setsid -f sxmo_appmenu.sh sys &
 			;;
 		"hidemenu")
 			pkill -9 dmenu

scripts/modem/sxmo_modemmonitortoggle.sh

@@ -2,7 +2,7 @@
 if pgrep -f sxmo_modemmonitor.sh; then
 	pgrep -f sxmo_modemmonitor.sh | grep -Ev "^${$}$" | xargs -IP kill -TERM P
 else
-	sxmo_modemmonitor.sh &
+	setsid -f sxmo_modemmonitor.sh &
 fi
 
 NOTIFDIR="$XDG_CONFIG_HOME"/sxmo/notifications