Maintain "Pending Review" Queue(s)

[MikeUnverferth]

The Problem

• Useful comments from community members often go unnoticed for long periods of time (duplicates, RFIs, etc)
• Spam comments are often missed
• Some community members submit many requests that are simply based on other's comments
• Helpers don't have a simple way of knowing if another helper has taken action on a report, leading to inefficiency
• Auto-reopens of A-R issues are sometimes missed, unless the mod who resolved as A-R "watches" them

Possible Solution

Add [...]-pending-review queue channels, which would work as follows:

• Bot detects that a change was made to an existing issue, or a new issue was added
• If there is a already an entry in the queue, remove it
• If the change was either by a "normal user" (not helper+), or was an auto-reopen from Arisa, add a entry to the queue. This should include a couple of lines from the comment along with the issue ID and part of its summary.
• Any helper can "react" to the post to have it removed (that indicates that they handled it in some way). And, since the post also gets removed from the channel if a helper+ makes any other change to the ticket, this will automate the removal in many cases.

Could even have a special "reaction" on comments that would hide the comment. That would make it easy to hide many of the "me to" comments on certain issues.