frontend now does not get the file status and simply waits for the server to respond with the file
added methods to download audio/video files to simplify downloadHelperMp3/Mp4
deleteaudiofile/deletevideofile functions now made for reusability
downloaded videos now use the title as the file name. this requires longer download times as 2 calls are created
created a deletefile http call in backend, however it is currently not being used