Lower Staking Cooldown period from 60 days to 30 days or 21 days

This proposal is to lower the staking period to either 21 days or 30 days, a 65% or 50% reduction from the current 60-day period. This brings SX in line with other major Proof-of-Stake protocols and removes a key concern of many new entrants into the SX staking ecosystem.

This change will enable significantly more flexibility in managing staked SX positions. With a shorter staking period, SX stakers can respond more quickly to market changes and capitalize on emerging opportunities, thereby lowering the risk of staking SX.

See discord for discussion