Set initial volume in desktop app

desktop-client/main.py

@@ -282,6 +282,7 @@ class VlcSyncApp(QMainWindow):
         self.vlc_player = VLCSyncPlayer(self.video_frame)
         self.vlc_player.signals.time_changed.connect(self.on_vlc_time)
         self.vlc_player.signals.state_changed.connect(self.on_vlc_state)
+        self.vlc_player.set_volume(self.volume_slider.value())
         
         self.play_btn.clicked.connect(self.toggle_playback)
 
@@ -499,6 +500,7 @@ class VlcSyncApp(QMainWindow):
         
         if self.local_file_path:
             self.vlc_player.load_media(self.local_file_path)
+            self.vlc_player.set_volume(self.volume_slider.value())
             
         users = msg.get("users", [])
         if users: