Add - Added fields to add mkvmerge & ffmpeg parameters to settings
Add - Added a new way to check the premium status of an account
Add - Added default audio and sub to muxing settings
Add - Added option to keep subtitles as files and not merge them
Add - Added option to download videos for all dubs selected
Chg - FFmpeg now also adds chapters to the files
Chg - Shows error if decryption files are missing