Add flag to toggle_profile_activation command to turn all off

[johannaengland]

Originally posted by @hmpf in #749 (review)

[hmpf]

I think you can combine this one and #757 and toggle_notification_profiles into a single command.

"list" is incompatible with the others, it might even be the fallback if there are no flags.

[johannaengland]

I have trouble picturing how that would look like?
Would list be a flag that if used like this toggle_profile_activation --list just list all notification profiles?

That seems un-intuitive for me, because what if we want to later add another management command that does something else with notification profiles and there it might also be useful to know all profiles, then we would have to double the code or call this command before even though we don't want to do anything with the activation.

I would prefer to have these separate and then we can mention the management command in the helptext for toggle_profile_activation.

[lunkwill42]

Add flag where? To what? What are we talking about here?

[johannaengland]

This can then also be added to the documentation introduced in #765