[Feature Request Usability] Ability to continue scrub If scrub status enters halted state

[Hooverdan96]

If a scrub status is halted (e.g. due to a scheduled or manually executed reboot), there is no option to resume it via the WebUI. There is, of course, the option to force a new scrub. But with big Rockstor pools that might add a substantial amount of time, since the scrubbing has to start from the beginning again.

Additionally, if a scrub is halted, and (e.g. using the command line) subsequently resumed, the status in the WebUI is not updated, i.e. it continues to show as 'halted'. If the above functionality to resume via the WebUI were to be implemented at some point, then it would be helpful to also adjust the status of the current entry, ideally even if it's resumed via the command line.

This does not have a high priority, as the workaround is to either run the command line to resume and check remaining status using the command line, or force a new scrub to start.