added keycode check to chat enter press

src/pages/chat.js

@@ -443,7 +443,7 @@ export default class Chat extends React.Component {
             ) {
               this.chatMessageSeen(selectedUser)
             }
-            if (e.key === 'Enter') {
+            if (e.key === 'Enter' || e.keyCode === 13) {
               if (!e.shiftKey) this.sendMsg(currMsg)
             }
             this.resizeInputBar()