[Add forge now] Add request comment

in the request dashboard, the moderator can add comments that will be displayed in the log

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Migrated from T4003 (view on Phabricator)

added priority:Normal + 1 deleted label

added priority:Wishlist label and removed priority:Normal label

changed title from [Add forge now Request dashboard] Annotate request to [Add forge now] Add request comment

changed the description

added state:wip label

assigned to @ardumont

mentioned in commit swh/devel/swh-web@255c85f5

mentioned in commit swh/devel/swh-web@0a796988

removed state:wip label

closed

marked this issue as related to #4070