* set CDP block interval to 100 to only run interest synchronization
for risky cdps every 100 blocks instead of every block
* refactor and use constant for setting to improve clarity; update
block interval to 50 instead of 100. This will decrease risk by
running around every 6 minutes instead of 12 mintues for current
mainnet block times.
* revert back to iavl v1 to avoid hash changes on new modules like
we are seeing on the v0.24.x to v0.25.x upgrade block. Also, add
replace statements for exp and rapid to match upstream cosmos-sdk
* fix sharding prune store logging and error return.
* add comment to clarify WithKeyTable usage
