Fix vlc is_playing

microkodi/programs/vlc.py

@@ -77,7 +77,7 @@ class VlcProgram(Program):
         return self._process is not None and self._process.returncode is None
 
     def is_playing(self) -> bool:
-        return self.get_player_info().is_playing
+        return self.get_player_info().playing
 
     def resume(self):
         self.__vlc_command("pl_pause")