alias work_in_progress -> making-of

Posted under Tags

BUR #5719 has been approved by @nonamethanks.

create alias work_in_progress -> making-of

Two years ago making-of was moved to making-of_available (topic #16006), so it's time for work in progress to be moved to its right naming too, because "work in progress" currently is being used in the same way as unfinished, and you gotta use work_in_progress animated to actually find the right results.

I'll clean up the tag once this is approved.