Allow disabling moderator email notifications

[jywarren]

Moderators get a lot of email. We should let them continue to moderate on the site, but disable the emails at https://publiclab.org/settings

In a separate follow-up, we could add a note to to moderators emails linking to that setting. We could offer an alternative method - an RSS feed, or a chat channel to review on, rather than by email.

[Anjalizi]

hi @jywarren. can you help me get started on this issue if this is still open?

[jywarren]

Thank you!!!!

Let's add a toggle when sending moderator emails, to look for user.has_tag('block-node-moderation-emails') -- then we can add a UI to add that tag!

The moderators to notify are identified in these sections here:

https://github.com/publiclab/plots2/blob/master/app/mailers/admin_mailer.rb#L6-L30

Would you be interested in trying to add some logic to check for the blocking tag, in the appropriate sections of code there?

[Anjalizi]

I'll start working on this.

[jywarren]

Merging into #6282