Optimize ERC-20 allowance

[PaulRBerg]

The ERC-20 allowance here:

JBSips/src/abstract/JBSablier.sol

Line 221 in 90dee3b

_data.token.approve({spender: address(PERMIT2), amount: type(uint256).max});

Could be moved in the constructor of the abstract contract JBSablier.