Fix eventId not being returned from matrix-send-file and matrix-send-message nodes

package.json

@@ -1,6 +1,6 @@
 {
   "name": "node-red-contrib-matrix-chat",
-  "version": "0.2.6",
+  "version": "0.2.7",
   "description": "Matrix chat server client for Node-RED",
   "dependencies": {
     "fs-extra": "^9.1.0",

src/matrix-send-file.js

@@ -80,7 +80,7 @@ module.exports = function(RED) {
                         .sendMessage(msg.topic, content)
                             .then(function(e) {
                                 node.log("File message sent: " + e);
-                                msg.eventId = e.eventId;
+                                msg.eventId = e.event_id;
                                 node.send([msg, null]);
                             })
                             .catch(function(e){

src/matrix-send-message.js

@@ -119,7 +119,7 @@ module.exports = function(RED) {
             node.server.matrixClient.sendMessage(msg.topic, content)
                 .then(function(e) {
                     node.log("Message sent: " + msg.payload);
-                    msg.eventId = e.eventId;
+                    msg.eventId = e.event_id;
                     node.send([msg, null]);
                 })
                 .catch(function(e){