Implement more advanced client-side logging

[Ameobea]

Currently, the log viewer in the MM is a very simple implementation, simply listening to messages arriving over the wire and adding them to the log table.

I'd love to implement a react-virtualized approach with an infinitely-scrolling list that's populated from the PostgreSQL server. I honestly can't remember very well just how far along it was in development, but it should also have full support for sorting, filtering, etc.