[console] Document how the Security Engine settings work?

[LaurenceJJones]

The following settings are available, however, users may not know how the "inactive" section work is it based on last connection or last alert? or if you think the text is enough then we can close

The text should be better read as

Whilst enabled, Security Engines that don‘t send alerts in amount of time set below, will be removed.

As receive isnt the best wording?