chore: update natspec comments

Author: Mani Brar

contracts/src/arbitrumToEth/VeaInboxArbToEth.sol

@@ -70,7 +70,7 @@ contract VeaInboxArbToEth is IVeaInbox {
     ///      Amortized cost is constant.
     /// Note: See docs for details how inbox manages merkle tree state.
     /// @param _to The address of the contract on the receiving chain which receives the calldata.
-    /// @param _data The message calldata, abi.encodeWithSelector(fnSelector, param1, param2, ...)
+    /// @param _data The message data for the receiving gateway.
     /// @return msgId The zero based index of the message in the inbox.
     function sendMessage(address _to, bytes calldata _data) external override returns (uint64) {
         uint64 oldCount = count;

contracts/src/arbitrumToEth/VeaOutboxArbToEth.sol

@@ -357,7 +357,7 @@ contract VeaOutboxArbToEth is IVeaOutboxOnL1 {
     /// @param _msgId The zero based index of the message in the inbox.
     /// @param _to The address of the contract on Ethereum to call.
     /// @param _from The address of the contract on Arbitrum that sent the message.
-    /// @param _message The message in the vea inbox as abi.encodeWithSelector(fnSelector, param1, param2, ...)
+    /// @param _message The message in the vea inbox.
     function sendMessage(
         bytes32[] calldata _proof,
         uint64 _msgId,

contracts/src/arbitrumToGnosis/VeaInboxArbToGnosis.sol

@@ -69,8 +69,8 @@ contract VeaInboxArbToGnosis is IVeaInbox {
     ///      `O(log(count))` where count is the number of messages already sent.
     ///      Amortized cost is constant.
     /// Note: See docs for details how inbox manages merkle tree state.
-    /// @param _to The address of the contract on the receiving chain which receives the calldata.
-    /// @param _data The message calldata, abi.encodeWithSelector(fnSelector, param1, param2, ...)
+    /// @param _to The address of the contract on the receiving chain which receives the message.
+    /// @param _data The message data for the receiving gateway.
     /// @return msgId The zero based index of the message in the inbox.
     function sendMessage(address _to, bytes calldata _data) external override returns (uint64) {
         uint64 oldCount = count;

contracts/src/arbitrumToGnosis/VeaOutboxArbToGnosis.sol

@@ -301,7 +301,7 @@ contract VeaOutboxArbToGnosis is IVeaOutboxOnL1, ISequencerDelayUpdatable {
     /// @param _msgId The zero based index of the message in the inbox.
     /// @param _to The address of the contract on Gnosis to call.
     /// @param _from The address of the contract on Arbitrum that sent the message.
-    /// @param _message The message in the vea inbox as abi.encodeWithSelector(fnSelector, param1, param2, ...)
+    /// @param _message The message in the vea inbox
     function sendMessage(
         bytes32[] calldata _proof,
         uint64 _msgId,

contracts/src/gnosisToArbitrum/VeaInboxGnosisToArb.sol

@@ -70,8 +70,8 @@ contract VeaInboxGnosisToArb is IVeaInbox {
     ///      `O(log(count))` where count is the number of messages already sent.
     ///      Amortized cost is constant.
     /// Note: See docs for details how inbox manages merkle tree state.
-    /// @param _to The address of the contract on the receiving chain which receives the calldata.
-    /// @param _data The message calldata, abi.encodeWithSelector(fnSelector, param1, param2, ...)
+    /// @param _to The address of the contract on the receiving chain which receives the message.
+    /// @param _data The message data for the receiving gateway.
     /// @return msgId The zero based index of the message in the inbox.
     function sendMessage(address _to, bytes calldata _data) external override returns (uint64) {
         uint64 oldCount = count;

contracts/src/gnosisToArbitrum/VeaOutboxGnosisToArb.sol

@@ -287,7 +287,7 @@ contract VeaOutboxGnosisToArb is IVeaOutboxOnL2 {
     /// @param _msgId The zero based index of the message in the inbox.
     /// @param _to The address of the contract on Arbitrum to call.
     /// @param _from The address of the message sender
-    /// @param _message The message in the vea inbox as abi.encodeWithSelector(fnSelector, param1, param2, ...)
+    /// @param _message The message in the vea inbox
     function sendMessage(
         bytes32[] memory _proof,
         uint64 _msgId,

contracts/src/interfaces/inboxes/IVeaInbox.sol

@@ -11,8 +11,8 @@ pragma solidity ^0.8.24;
 interface IVeaInbox {
     /// @dev Sends an arbitrary message to receiving chain.
     /// Note: Calls authenticated by receiving gateway checking the sender argument.
-    /// @param _to The cross-domain contract address which receives the calldata.
-    /// @param _data The message calldata, abi.encodeWithSelector(...)
+    /// @param _to The cross-domain contract address which receives the message.
+    /// @param _data The message data.
     /// @return msgId The index of the message in the inbox, as a message Id, needed to relay the message.
     function sendMessage(address _to, bytes calldata _data) external returns (uint64 msgId);