Correct comment in hashEIP712Message() in LibEIP712Domai.sol.

Merge janky changelog notes in `types` package.
Correct changelog note in `coordinator` changelog.

contracts/coordinator/CHANGELOG.json

@@ -6,7 +6,7 @@
                 "note": "Created Coordinator package"
             },
             {
-                "note": "Use mixed EIP712 domains for transactions and approvals",
+                "note": "Use separate EIP712 domains for transactions and approvals",
                 "pr": 1705
             },
             {

contracts/coordinator/contracts/src/libs/LibEIP712Domain.sol

@@ -111,7 +111,7 @@ contract LibEIP712Domain is
         // Assembly for more efficient computing:
         // keccak256(abi.encodePacked(
         //     EIP191_HEADER,
-        //     EIP712_COORDINATOR_DOMAIN_HASH,
+        //     EIP712_DOMAIN_HASH,
         //     hashStruct
         // ));