Chore: change function signature which is more readable

[aeharvlee]

ToAddress function returns list of address.
I think ToAddresses or ToAddressList` will be more readable.

Canto/x/govshuttle/keeper/proposals.go

Lines 83 to 95 in 4ffeda9

	func ToAddress(addrs []string) []common.Address {
	if addrs == nil {
	return make([]common.Address, 0)
	}
	arr := make([]common.Address, len(addrs))
	for i, v := range addrs {
	arr[i] = common.HexToAddress(v)
	}
	return arr
	}

If you guys ok for this, I'll create PR for it.