panic on chain start if all required parameters have not been set in genesis

[rootulp]

Context

#1363 was caused by arabica-4's genesis.json not containing an expected parameter.

Problem

celestia-app or the cosmos-sdk doesn't verify that all required parameters have been set in genesis.json

Proposal

panic on chain start if all required parameters have not been set in genesis.json. Ideally this would be an issue and PR to cosmos-sdk. If that's not feasible, consider adding a patch to celestia-app.

[rootulp]

We have a subcommand called validate-genesis that only performs validation for the Tendermint portion of the genesis file so this works:

$ celestia-appd validate-genesis
File at /Users/rootulp/.celestia-app/config/genesis.json is a valid genesis file

$ code /Users/rootulp/.celestia-app/config/genesis.json
// remove a necessary genesis param like per_blob_byte

$ celestia-appd validate-genesis
File at /Users/rootulp/.celestia-app/config/genesis.json is a valid genesis file