Add composing notification

Change-Id: I2c052c4395a56ba6acf882cea3be4b82e2fde761
diff --git a/common/src/interfaces/websocket-message.ts b/common/src/interfaces/websocket-message.ts
index c42fc44..af3078c 100644
--- a/common/src/interfaces/websocket-message.ts
+++ b/common/src/interfaces/websocket-message.ts
@@ -19,6 +19,7 @@
 import {
   CallAction,
   CallBegin,
+  ComposingStatus,
   ConversationMessage,
   ConversationView,
   WebRtcIceCandidate,
@@ -28,6 +29,8 @@
 export interface WebSocketMessageTable {
   [WebSocketMessageType.ConversationMessage]: ConversationMessage;
   [WebSocketMessageType.ConversationView]: ConversationView;
+  [WebSocketMessageType.OnComposingStatusChanged]: ComposingStatus;
+  [WebSocketMessageType.SetIsComposing]: ComposingStatus;
   [WebSocketMessageType.CallBegin]: CallBegin;
   [WebSocketMessageType.CallAccept]: CallAction;
   [WebSocketMessageType.CallEnd]: CallAction;