Fix waiting state not disappearing after the 20 second timeout

src/room/PTTCallView.tsx

@@ -14,7 +14,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import React from "react";
+import React, { useEffect } from "react";
 import useMeasure from "react-use-measure";
 import { ResizeObserver } from "@juggle/resize-observer";
 import { GroupCall, MatrixClient, RoomMember } from "matrix-js-sdk";
@@ -142,8 +142,7 @@ export const PTTCallView: React.FC<Props> = ({
   const networkWaiting =
     talkingExpected && !activeSpeakerUserId && !showTalkOverError;
 
-  const activeSpeakerIsLocalUser =
-    activeSpeakerUserId && client.getUserId() === activeSpeakerUserId;
+  const activeSpeakerIsLocalUser = activeSpeakerUserId === client.getUserId();
   const activeSpeakerUser = activeSpeakerUserId
     ? client.getUser(activeSpeakerUserId)
     : null;
@@ -152,6 +151,10 @@ export const PTTCallView: React.FC<Props> = ({
     ? activeSpeakerUser.displayName
     : "";
 
+  useEffect(() => {
+    setTalkingExpected(activeSpeakerIsLocalUser);
+  }, [activeSpeakerIsLocalUser, setTalkingExpected]);
+
   return (
     <div className={styles.pttCallView} ref={containerRef}>
       <PTTClips