page sidebar: refactor the link lists with partials and collections
moderation: add flag action to page sidebar
moderation: port over and clean up page flagging
posts: make the whole text td shy_parent for edit button

this way it will be displayed when you hover over the region not just when hovering over the text hight which can be very small
routes: forbid name posts - want to use it in moderation routes

We need nested routes to moderated_flags for a post there.
Using page/2/post/4/moderated_flag/6 would be too deep nested
Using admin/post/3/... is not appropriate as this is for non admin usage
moderation: enable basic post moderation, cleanup