Here is the first draft mockup of the Topics Screen as amended to
support topic translation. We are also waiting for a proposed
screenshot from Charles, which we may use instead, or combine the best
of them both.
The idea behind this layout is to be able to see all the topics at once,
and also be able to see all translations of all topics at once if you
need to. The lines on the left group together a topic translated into
multiple languages. You can click on a flag icon next to a topic to
translate it. You can click on the plus sign to add a subtopic. The
two-letter language code is next to the topic to tell which language it
is in.