FR: Adjustable scan time

Hi

It would be great if the plugin lets the user to disable scanning and let the user to adjust the scan times. For instance I don't want it to scan folders regularly, It causes way too much IO unnecessarily.

Also, it would be helpful if it ignores scan errors and don't show pop ups to inform the user. If there are a lot of errors., missing shortcuts etc the suer is bombarded with popups regularly since the scanning is done regularly during the day.

Thanks