Note that, unlike what we did in the admin section we're opening links
to budget investments on the same tab. There are two reasons for it; the
first one is that, in this case, there are no filters in the moderation
section that are lost after editing an investment, and the second one is
that, in this context, administrators usually don't go to the investment
in order to edit it, so they can just check something and use the
browser's back button to go back.
We had five almost-identical views. Now we've removed most of the
duplication, although the tables are still similar. We might refactor
them in the future.
In keys like `hide_debates`, the suffix part is redundant when that key
is part of an absoulte key starting with `moderation.debates`.
This change will make it easier to remove duplication in moderation
views.
Missing:
* Ensure removing a flag updates the flagged_at attribute correctly
* Showing the debate when the comment is not a “root”
* Filter (pending / reviewed / all)
* Order
* Same for debates
