fix live audio settings and trigger highlights

- start each camera group's audio from that group's saved settings instead of merging every group
- don't clear the previous trigger's highlight timeout when another trigger fires

web/src/views/live/DraggableGridLayout.tsx

@@ -575,25 +575,19 @@ export default function DraggableGridLayout({
   };
 
   useEffect(() => {
-    if (!allGroupsStreamingSettings) {
-      return;
-    }
-
     const initialAudioStates: AudioState = {};
     const initialVolumeStates: VolumeState = {};
 
-    Object.entries(allGroupsStreamingSettings).forEach(([_, groupSettings]) => {
-      if (groupSettings) {
-        Object.entries(groupSettings).forEach(([camera, cameraSettings]) => {
-          initialAudioStates[camera] = cameraSettings.playAudio ?? false;
-          initialVolumeStates[camera] = cameraSettings.volume ?? 1;
-        });
-      }
-    });
+    Object.entries(currentGroupStreamingSettings ?? {}).forEach(
+      ([camera, cameraSettings]) => {
+        initialAudioStates[camera] = cameraSettings.playAudio ?? false;
+        initialVolumeStates[camera] = cameraSettings.volume ?? 1;
+      },
+    );
 
     setAudioStates(initialAudioStates);
     setVolumeStates(initialVolumeStates);
-  }, [allGroupsStreamingSettings]);
+  }, [currentGroupStreamingSettings, cameraGroup]);
 
   const toggleAudio = (cameraName: string) => {
     setAudioStates((prev) => ({