FeePool.claimFees: updates updates collat state

[0xclem]

FeePool Events
event FeePeriodClosed(uint feePeriodId); event FeesClaimed(address account, uint sUSDAmount, uint snxRewards);

FeePool.contract.on("FeesClaimed", (account, sUSDAmount, snxRewards, event) => { // Refresh All Data });

FeePool.contract.on("FeePeriodClosed", (feePeriodId, event) => { // Refresh Claim Screen. });