Allow sending room events in rtc sdk

sdk/main.ts

@@ -99,7 +99,7 @@ export async function createMatrixRTCSdk(
   const scope = new ObservableScope();
 
   // widget client
-  initializeWidget(application);
+  initializeWidget(application, true);
   const widget = _widget;
   if (!widget) throw Error("No widget. This webapp can only start as a widget");
   const client = await widget.client;

src/widget.ts

@@ -68,7 +68,10 @@ export let widget: WidgetHelpers | null;
  */
 // this needs to be a seperate call and cannot be done on import to allow us to spy on methods in here before
 // execution.
-export const initializeWidget = (rtcApplication: string = "m.call"): void => {
+export const initializeWidget = (
+  rtcApplication: string = "m.call",
+  sendRoomEvents = false,
+): void => {
   try {
     const {
       widgetId,
@@ -116,6 +119,9 @@ export const initializeWidget = (rtcApplication: string = "m.call"): void => {
         EventType.CallNotify, // Sent as a deprecated fallback
         EventType.RTCNotification,
       ];
+      if (sendRoomEvents) {
+        sendEvent.push(EventType.RoomMessage);
+      }
       const sendRecvEvent = [
         "org.matrix.rageshake_request",
         EventType.CallEncryptionKeysPrefix,