Move Network Chatter to tabs

[eaton]

Tabs below any item's details should include a tabbed or accordion-style display of:

1. Network chatter
2. GM Notes
3. Plot Seeds

Optionally, move plot seeds to a comment-based system rather than a dedicated field. That would allow broader participation by community members, and voting on individual plot seeds. Which would be cool.

[eaton]

Okay, not tabs but accordions at least.