SpotifyRecorder: do not try to calculate duration of local track

SpotifyRecorder.py

@@ -68,7 +68,7 @@ class SpotifyRecorder:
             LOGGER.info(f'Recording track #{self._startNumber} to (including) #{self._startNumber + self._limit - 1}')
             tracks = tracks[self._startNumber - 1:self._startNumber - 1 + self._limit]
 
-        totalDurationInSeconds = sum([track['track']['duration_ms'] // 1000 for track in tracks])
+        totalDurationInSeconds = sum([track['track']['duration_ms'] // 1000 for track in tracks if not track['is_local']])
         LOGGER.info(f'Total duration: {self.__convert_seconds_to_duration(totalDurationInSeconds)}')
 
         if click.confirm('Do you want to start recording?', default=True):