fix: update trajectory to reflect current playing track

Author: Sg4Dylan

frontend/web/src/App.jsx

@@ -118,6 +118,14 @@ function App() {
     }
   };
 
+  const handlePlayerTrackChange = track => {
+    setCurrentTrack(track);
+    if (track && track.trajectory)
+      setTrajectory(track.trajectory);
+    else
+      setTrajectory([]);
+  };
+
   const handleExport = params => {
     const searchParams = new URLSearchParams();
     Object.keys(params).forEach(key => searchParams.append(key, params[key]));
@@ -160,7 +168,7 @@ function App() {
 
         <Player
           selectedTrack={selectedTrack}
-          onTrackChange={setCurrentTrack}
+          onTrackChange={handlePlayerTrackChange}
           onPlaylistChange={handlePlaylistGenerated}
           onExportPlaylist={handlePlaylistExportFromPlayer}
           onTimeUpdate={setCurrentTime}