Adapt goimapnotify configuration to YAML

scripts/.local/share/scripts/mail-sync

@@ -1,11 +1,12 @@
 #!/bin/sh
 
+ACCOUNT="$1"
+
 if [ $# -lt 1 ]; then
-	echo "Usage: mail-sync <account name>"
-	exit 1
+	ACCOUNT="-a"
 fi
 
-mbsync "$1"
+mbsync "$ACCOUNT"
 if pgrep -f 'mu server'; then
 	emacsclient -e '(mu4e-update-index)'
 else