Update for waybar

eww/eww-mu4e-messages

@@ -1,4 +1,11 @@
 #!/usr/bin/env zsh
 
+let greather_than_zero=0
+if [[ "${1}" == '-g' ]]; then
+    greather_than_zero=1
+fi
+
 lines=(${(f)"$(mu find '(maildir:/protonmail/Inbox or maildir:/ucsc-gmail/Inbox) AND flag:unread' 2>/dev/null)"})
-printf '%d' "${#lines}"
+if [[ ${#lines} > 0 ]] || ! (( greather_than_zero )); then
+    printf '%d' "${#lines}"
+fi