- Major Changes to the code

* Broke up the code between Main Gui, Batch Gui, and YoutubeDL Gui (This will make managing all of them a lot easier)
* Changed how the File -> Exit button functions, this was required for each individual window with the new code
* QAAC encoder had some major bugs on any setting that was not 'True VBR.' This has been fixed for both the batch encoder and the single file encoder