fix: Add protocolMessageKey and fix revoked messages to preserve original before.id (#3715)

* Add protocolMessageKey and fix revoke

* Add protocolMessageKey and fix revoke

* docs: add explanation

index.d.ts

@@ -1086,6 +1086,11 @@ declare namespace WAWebJS {
         latestEditSenderTimestampMs?: number,
         /** Last edit message author */
         latestEditMsgKey?: MessageId,
+        /**
+         * Protocol message key.
+         * Can be used to retrieve the ID of an original message that was revoked.
+         */
+        protocolMessageKey?: MessageId,
         /** Message buttons */
         dynamicReplyButtons?: object,
         /** Selected button ID */