fix rclone config

systemd/kdrive-rclone.service

@@ -8,8 +8,9 @@ Type=simple
 User=root
 ExecStart=/usr/bin/rclone mount kdrive: /mnt/kdrive \
   --allow-other \
+  --allow-non-empty \
   --vfs-cache-mode full \
-  --dir-cache-time 1h
+  --dir-cache-time 15m
 ExecStop=/bin/fusermount -u /mnt/kdrive
 Restart=always
 RestartSec=10