[Feature Request] Custom Range for Refresh Interval Time

[Pockey7]

Hi, would it be possible to add a custom refresh range that would refresh a tab at a random interval between a minimum and maximum range that we set? Like if we set it to every 5 to 10 minutes, it could refresh at 5 minutes 18 seconds, 7 minutes 53 seconds, 9 minutes 25, etc.

Thank you for making this! It's great having an auto-refresher that I can trust.