Look for ATTRIB events for notifications updates; remove "Pickup" menu

Picking up call can be done from both dunst notification & notifications menu;
so for more consistency / less bugs the Pickup menu entry has been removed.

scripts/core/sxmo_notificationwrite.sh

@@ -1,25 +0,0 @@
-#!/usr/bin/env sh
-NOTIFDIR="$XDG_CONFIG_HOME"/sxmo/notifications
-
-# Takes 4 args:
-# (1) the filepath of the notification to write (or random to generate a random id)
-# (2) action notification invokes upon selecting
-# (3) the file to watch for deactivation.
-# (4) description of notification
-NOTIFFILEPATHTOWRITE="$1"
-ACTION="$2"
-WATCHFILE="$3"
-NOTIFMSG="$4"
-
-writenotification() {
-	lsof | grep "$WATCHFILE" && exit 0 # Already viewing watchfile, nops
-	mkdir -p "$NOTIFDIR"
-	if [ "$NOTIFFILEPATHTOWRITE" = "random" ]; then
-		NOTIFFILEPATHTOWRITE="$NOTIFDIR/$(tr -dc 'a-zA-Z0-9' < /dev/urandom | head -c 10)"
-	fi
-	touch "$NOTIFFILEPATHTOWRITE"
-	printf %b "$ACTION\n$WATCHFILE\n$NOTIFMSG\n" > "$NOTIFFILEPATHTOWRITE"
-}
-
-[ "$#" -lt 4 ] && echo "Need >=4 args to create a notification" && exit 1
-writenotification