When the advisory board rejects a market there is no way to give feedback to the market creator

[Nathanpmyoung]

This is frustrating to market creators

[maltekliemann]

This is somewhat related to #742.

On the chain side, we can fix this by adding a short message in an event, similar to how System::remark() works. But to facilitate a proper back-and-forth between advisor and user, we need a comment function on the frontend.

[vivekvpandya]

do we want feature from front-end? or I can add RejectReason in reject_market extrinsic and then return it in event.

[maltekliemann]

I like the EditReason you built into #834. That allows us to have a track record on the blockchain. But I think there should also be a front-end solution.

[maltekliemann]

Opened an issue about this: zeitgeistpm/ui#346.