mail: set urgent flag when new mail arrived

config

@@ -4,7 +4,7 @@ markup=none
 
 [mail]
 label=✉️
-command=find ~/.mail -path '*/new/*' | wc --lines
+command=python3 -c "import glob, os, sys; num=len(glob.glob(os.path.expanduser('~/.mail/*/inbox/new/*'))); print(num); sys.exit(33 if num else 0)"
 interval=120
 signal=2