Hangup when last person in call (based on url params) (#3372)

* Introduce condigurable auto leave option

* Read url params for auto leave

* add tests

* rename url param to `autoLeave`

* lint

Signed-off-by: Timo K <toger5@hotmail.de>

* fix scope in CallViewModel tests

Signed-off-by: Timo K <toger5@hotmail.de>

* use auto leave in DM case

Signed-off-by: Timo K <toger5@hotmail.de>

* Make last once leave logic based on matrix user id (was participant id before)

Signed-off-by: Timo K <toger5@hotmail.de>

* add test for multi device auto leave

Signed-off-by: Timo K <toger5@hotmail.de>

---------

Signed-off-by: Timo K <toger5@hotmail.de>

src/room/CallEventAudioRenderer.tsx

@@ -60,7 +60,7 @@ export function CallEventAudioRenderer({
   const audioEngineRef = useLatest(audioEngineCtx);
 
   useEffect(() => {
-    const joinSub = vm.memberChanges$
+    const joinSub = vm.participantChanges$
       .pipe(
         filter(
           ({ joined, ids }) =>
@@ -72,7 +72,7 @@ export function CallEventAudioRenderer({
         void audioEngineRef.current?.playSound("join");
       });
 
-    const leftSub = vm.memberChanges$
+    const leftSub = vm.participantChanges$
       .pipe(
         filter(
           ({ ids, left }) =>