bond_denom defines the bondable coin denomination.
historical_entries is the number of historical entries to persist.
max_entries is the max entries for either unbonding delegation or redelegation (per pair/trio).
max_validators is the maximum number of validators.
max_voting_power_enforcement_threshold defines the minimal bonded voting power of the max voting power ratio enforcement
max_voting_power_ratio defines the maximal allowable voting power ratio delegated to a validator.
min_commission_rate is the chain-wide minimum commission rate that a validator can charge their delegators
unbonding_time is the time duration of unbonding.
Params defines the parameters for the staking module.