Gas Optimizations

[code423n4]

https://github.com/fei-protocol/xTRIBE/blob/989e47d176facbb0c38bc1e1ca58672f179159e1/src/xTRIBE.sol#L89
In solidity uint256 variables initialice in 0
In the function emitVotingBalances remove the i initialize

Proposal improve:

    function emitVotingBalances(address[] calldata accounts)
        external
        requiresAuth
    {
        uint256 size = accounts.length;

        for (uint256 i; i < size; ) {
            emit DelegateVotesChanged(accounts[i], 0, getVotes(accounts[i]));

            unchecked {
                i++;
            }
        }
    }

[0xean]

dupe of #90