Audioplayer Bugs

[MastewalB]

The Current audio player widget has the following problems.

• The queue( audioQueue ) doesn't work properly, i.e. going to previous and next songs has incorrect ordering.
• The TimeSlider widget does not rebuild the Stream if error occurred(for eg. Internet Connection).
• Sizes are not properly scaled for different devices

[MastewalB]

audioQueue ordering is incorrect due to the nature of the playAudio function.

In the bloc on<PlayAudioEvent>((event, emit) handler audioQueue.add(event.audio); Even though the audio is in the queue, it's added again without further check, hence resulting in duplicate instances.