Rapid Page to Topic List Transition

[Azareal]

Transitioning from a topic page to the topic list should be a lot faster than it is now, especially when we have already visited the page. For this, we could use data from our previous visit to the topic list and perhaps some accompanying data from the server.

This is part of the rapid series of issues which tries to reduce the software's reliance on the server, as things have a tendency of getting slower as we move further away from the physical server.