Implement top price mover on the explore page

[erwanor]

We removed the top price mover info card in #370 because it was showing nonsensical values.

We should restore it, adjusting the query so that it filters results based on a configurable threshold of liquidity (e.g, 10k). I believe that most of the work is done (?), and we need to plumb it correctly.

cc @cronokirby for more context on what's left to do here, iirc a config flag PR got merged into pindexer, but the data is still bad, maybe it's not used yet?

[cronokirby]

penumbra-zone/penumbra#4936 is the one adding that config in the pindexer cli, still unmerged