whisperlivekit/audio_processor.py: bugfix when lines array is empty

whisperlivekit/audio_processor.py: apply translation to the whole recognized chunk insted of on a token basis

whisperlivekit/audio_processor.py: use space as separator

whisperlivekit/audio_processor.py: translate only the new text coming from transcription

whisperlivekit/audio_processor.py: activate translation

whisperlivekit/audio_processor.py: translation controlled by and if/else, added await to call translate_text as async

connected translation with frontend

whisperlivekit/audio_processor.py: bug fix to translate from transcribed text and show in log messages

whisperlivekit/audio_processor.py: define and call translate_text, define translation_tokenizer and translator attributes in class AudioProcessor

Logs for https://github.com/QuentinFuxa/WhisperLiveKit/issues/110 https://github.com/QuentinFuxa/WhisperLiveKit/issues/106

script to lib